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Evolution of MEG: a first MEG-feasible fluxgate magnetometer
Human Brain Mapping. 2021. Vol. 42. No. 15. P. 4844–4856.
Abstract In the current article, we present the first solid-state sensor feasible for magnetoencephalography (MEG) that works at room temperature. The sensor is a fluxgate magnetometer based on yttrium-iron garnet films (YIGM). In this feasibility study, we prove the concept of usage of the YIGM in terms of MEG by registering a simple brain induced field—the human alpha rhythm. All the experiments and results are validated with usage of another kind of high-sensitive magnetometers—optically pumped magnetometer, which currently appears to be well-established in terms of MEG.
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Vasilyev A., Svirin EP, Dubynin I. et al., Cortex 2025 Vol. 189 P. 76–96
Added: October 22, 2026
Karina V. Klycheva, Mariia O. Silkina, Dmitry M. Hushpulian et al., Biochemistry. Biokhimiia 2026 Vol. 91 P. 1842–1858
Involvement of the transcription factor Bach1 in various scenarios of cellular regulation is reviewed herein. To date, the most extensively studied role of Bach1 is that of a repressor of the antioxidant genetic program initiated by the Nrf2 factor. This program counteracts oxidative stress, which triggers both ferroptosis and the intrinsic apoptotic pathway. Bach1 functions unrelated ...
Added: October 22, 2026
Svirin E., Бердышев Д. А., Шишкин С. Л., Вестник Российского государственного медицинского университета 2026 № 3 С. 42–50
Quasi-movements (QMs), which are movement attempts minimized to the point of movement extinction, evoke EEG patterns similar to those of real movement. QMs can model attempted movement in healthy subjects and are therefore of interest as an alternative to motor imagery (MI) in rehabilitation brain–computer interfaces (BCIs), in which the attempted movement of the paralyzed ...
Added: October 22, 2026
Sitdikova K., Tsoy A., Chaprov K. et al., Journal of Neuropathology and Experimental Neurology 2026 Article nlag078
Understanding the earliest pathological changes in Alzheimer disease (AD) is critical for improving early intervention strategies. However, the relationship between amyloid plaque characteristics and early behavioral and molecular alterations remains unclear. We used 6-month-old female APPswe/PS1dE9 mice, a model of early amyloid-dominant pathology, to assess cognition and emotionality across a battery of behavioral tests. Amyloid ...
Added: October 22, 2026
Effects of Wheat Malt Extract on Molecular and Behavioral Markers in Aged APP/PS1 and Wild-Type Mice
Kassenova A., Svirin E., Sitdikova K. et al., International Journal of Molecular Sciences 2026 Vol. 27 No. 11 Article 4994
Added: October 22, 2026
Cespuglio R., Schmitt-Böhrer A., Deykin A. et al., Metabolites 2026 Vol. 16 No. 2 Article 117
Added: October 22, 2026
Logvenkov S. A., Известия РАН. Механика жидкости и газа 2026 № 3 С. 59–75
The problem of the evolution of cell volume fraction in a spherical aggregate composed of cells,
extracellular matrix, and fluid is considered. The aggregate is surrounded by extracellular matrix. The
problem formulation employs a multiphase model of a biological continuum, previously developed by the
author, consisting of two actively interacting solid phases and a fluid. The propagation of ...
Added: October 20, 2026
Liaukovich K., Zhurnal Vysshei Nervnoi Deyatelnosti Imeni I.P. Pavlova 2026 Vol. 76 No. 5 P. 587–598
Added: October 19, 2026
Nersisyan A., Frontiers in Molecular Biosciences 2026 Vol. 13 Article 1995001
Antiviral activity is commonly summarized using endpoint measures such as EC50 or EC90, yet these quantities emerge from a dynamic biological system and depend on viral replication kinetics, host-cell properties, experimental design, and the assay used to quantify infection. Infectious-virus titers, viral RNA, infected-cell fractions, viability measurements, and immune readouts capture different components of the ...
Added: October 15, 2026
Тукачев Н. В., González-Jiménez M., Ramakrishnan G. et al., Physical Chemistry Chemical Physics 2021 Vol. 23 No. 23 P. 13250–13260
Low-frequency vibrations play an essential role in biomolecular processes involving DNA such as gene expression, charge transfer, drug intercalation, and DNA–protein recognition. However, understanding the vibrational basis of these mechanisms relies on theoretical models due to the lack of experimental evidence. Here we present the low-frequency vibrational spectra of G-quadruplexes (structures formed by four strands ...
Added: October 14, 2026
Батова О. Н., Савинецкая Л. Е., Проявка С. В. et al., Nature Conservation Research. Заповедная наука 2026 Т. 11 № 4 С. 25–39
Spermophilus suslicus is a threatened species listed in Red Data Books at all levels (from regional Red Data
Books to the IUCN Red List of Threatened Species), and it currently requires special conservation activity.
Over the past 30–50 years, its range has changed from continuous to mosaic, and its population has declined
everywhere. In 2015, in Russia experimental ...
Added: October 13, 2026
Temereva E., Zoologischer Anzeiger 2026 Vol. 325 P. 182–195
Brachiopoda is a group of animals, that is still insufficiently studied at the ultrastructural level, despite the significance of ultrastructure of tissues and organs for analysing the functional morphology, reconstructing the organisation and biology of numerous extinct brachiopods, and establishing relationships among major taxa. In the present study, we provide a revised reconstruction of the ...
Added: October 11, 2026
Korotkova E., Kulikova S., Lvova O. et al., Pediatric Radiology 2026 P. 1–9
Background
Predicted brain age is a widely used neuroimaging biomarker of brain maturation. However, limited normative pediatric datasets in model training raise concerns about systematic biases when applied to children. This study evaluates the hypothesis of predicted brain age overestimation in typically developing pediatric populations.
Objective
To analyze predicted brain age and brain delta in a large, age- ...
Added: October 3, 2026
Ekaterina D. Riumina, Klink G. V., Alekseeva E. et al., PNAS, США 2026 Vol. 123 No. 35 P. 1–20
The role of escape from the cytotoxic T cell (CTL) response in SARS-CoV-2 evolution remains controversial. Here, we study the origin and spread of SARS-CoV-2 variants whose mutations reduce presentation by the HLA class I alleles common in human populations. We find that 35% of mutations that are characteristic of the variants of concern, and ...
Added: October 2, 2026
Medvedeva A., Nikita Rudenkiy, Danila Shelepenkov et al., Behavioural Brain Research 2026 Vol. 507 Article 116169
Emotion regulation is aimed to control emotional states through various strategies, among which reappraisal and suppression have been extensively studied up to date. Nevertheless, physiological correlates of this process are still debatable, since findings on both brain and peripheral activity are contradictory. In the present work, we were first to investigate neural sources and inter-subject ...
Added: April 1, 2026
Mening S., Fedele T., Otstavnov N., , in: 2025 Seventh International Conference Neurotechnologies and Neurointerfaces (CNN).: IEEE, 2025. P. 62–65.
The neural mechanisms underlying the involvement of different working memory components remain unclear. We investigated oscillatory activity during verbal-spatial WM tasks involving either simple retention or complex manipulation. Using MEG, we examined differences in sensor-level activity across conditions in 29 participants. No significant differences were found between simple verbal and spatial storage. Complex tasks elicited ...
Added: October 6, 2025
Сизикова Т. Э., Леонов С. В., Polikanova I., Российский психологический журнал 2024 Т. 21 № 3 С. 172–189
Introduction. High levels of anxiety are often associated with abnormal activity in the brain areas involved in emotional processing, cognitive control, and reduced connectivity in the default mode network (DMN). Studies also show that the activation of the DMN increases during self-reflection processes, especially positive self-reference, suggesting the possibility of using self-reflection to reduce anxiety. ...
Added: November 2, 2024
Ilia Semenkov, Nikita Fedosov, Makarov I. et al., Journal of Neural Engineering 2023 Vol. 20 No. 5 Article 056008
Objective. Neurofeedback and brain-computer interfacing technology open the exciting opportunity for establishing interactive closed-loop real-time communication with the human brain. This requires interpreting brain's rhythmic activity and generating timely feedback to the brain. Lower delay between neuronal events and the appropriate feedback increase the efficacy of such interaction. Novel more efficient approaches capable of tracking brain ...
Added: September 9, 2023
Koshev N., Kapralov P., Evstigneeva S. et al., IEEE Transactions on Biomedical Engineering 2024 Vol. 71 No. 1 P. 122–129
In the current article, we present a new kind of magnetometer for quantitative detection of magnetic objects (magnetic nano- and submicron particles) in biological fluids and tissues. The sensor is based on yttrium-iron garnet film with optical signal registration system. Inheriting the working principle of a fluxgate magnetometers, the sensor works at a room-temperature, its ...
Added: August 29, 2023
Arutiunian V., Arcara G., Buyanova I. et al., Progress in Neuro-Psychopharmacology and Biological Psychiatry 2023 Vol. 122 Article 110690
Language impairment is comorbid in most children with Autism Spectrum Disorder (ASD), but its neural mechanisms are still poorly understood. Some studies hypothesize that the atypical low-level sensory perception in the auditory cortex accounts for the abnormal language development in these children. One of the potential non-invasive measures of such low-level perception can be the ...
Added: August 20, 2023
Hein T., Gong Z., Ivanova M. et al., Communications Biology 2023 Vol. 6
Anxiety has been linked to altered belief formation and uncertainty estimation, impacting learning. Identifying the neural processes underlying these changes is important for understanding brain pathology. Here, we show that oscillatory activity in the medial prefrontal, anterior cingulate and orbitofrontal cortex (mPFC, ACC, OFC) explains anxiety-related learning alterations. In a magnetoencephalography experiment, two groups of ...
Added: June 7, 2023
Pavlova A., Tyulenev N., Tretyakova V. et al., Psychophysiology 2023 Vol. 60 No. 8 Article e14284
Large-scale cortical beta (β) oscillations were implicated in the learning processes, but their exact role is debated. We used MEG to explore the dynamics of movement-related β-oscillations while 22 adults learned, through trial and error, novel associations between four auditory pseudowords and movements of four limbs. As learning proceeded, spatial–temporal characteristics of β-oscillations accompanying cue-triggered ...
Added: March 28, 2023
Chirkov V., Kryuchkova A., Koptelova A. et al., Plos One 2022 Vol. 17 No. 10 Article e0275063
The reliable identification of the irritative zone (IZ) is a prerequisite for the correct clinical evaluation of medically refractory patients affected by epilepsy. Given the complexity of MEG data, visual analysis of epileptiform neurophysiological activity is highly time consuming and might leave clinically relevant information undetected. We recorded and analyzed the interictal activity from seven ...
Added: November 14, 2022
Tyulenev N., Tretyakova V., Skavronskaya V. et al., , in: International Journal of Psychophysiology.: Elsevier, 2021. P. 99–99.
Added: August 15, 2022