Publications by authors named "Szwed M"

Background: Metabolic-bariatric surgery (MBS) transcends weight loss and offers wide-ranging health benefits, including positive effects on brain function. However, the mechanisms behind these effects remain unclear, particularly in the context of significant postoperative changes in the inflammatory profile characteristic of MBS. Understanding how inflammation influences postoperative brain function can enhance our decision-making on patient eligibility for MBS and create new opportunities to improve the outcomes of this popular treatment.

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Mirror-invariance enables recognition of mirrored objects as identical. During reading acquisition, sighted readers must overcome this innate bias to distinguish between mirror-inverted letters ('d' vs. 'b').

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  • The study investigates the impact of exposure to natural environments on attention levels in Polish children, specifically focusing on those with attention deficit hyperactivity disorder (ADHD).
  • Researchers utilized data from 195 ADHD participants and 457 non-ADHD participants to analyze how factors like nature perception, physical activity, and sleep influenced attention, employing various statistical models.
  • Findings suggest that higher exposure to tree cover improves attention skills in children with ADHD, while different types of greenery and proximity to water show varied effects on attention in both ADHD and non-ADHD groups.
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Congenital deafness enhances responses of auditory cortices to non-auditory tasks, yet the nature of the reorganization is not well understood. Here, naturalistic stimuli are used to induce neural synchrony across early deaf and hearing individuals. Participants watch a silent animated film in an intact version and three versions with gradually distorted meaning.

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Purpose: Bariatric surgery poses an ever-increasing importance in the effective and long-lasting treatment of obesity, a condition strongly associated with inflammation and increased risk of other diseases and health problems. In obesity-related inflammation, maintaining a balance between pro-inflammatory and anti-inflammatory cytokines is crucial. In this study, we examined early effects of laparoscopic sleeve gastrectomy (LSG) on inflammatory and anti-inflammatory cytokines in obese patients, and assessed their effect on postoperative weight loss.

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  • Blind individuals often experience heightened sensory abilities, including improved hearing and tactile skills, as well as better perception of their own heartbeat, indicating enhanced interoceptive accuracy.
  • Recent research suggests that structural changes in the occipital cortex, such as increased cortical thickness, may contribute to these enhancements in sensory perception among congenitally blind individuals.
  • A study found a significant positive correlation between the ability to count heartbeats and cortical thickness in blind participants, linking these structural changes to their superior heartbeat perception.
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A relationship between the electronic properties of metal ions in metallacarboranes and their ability to modulate mitochondrial oxidase activity and membrane hyperpolarization in cancer cells was demonstrated. Quantum chemistry methods, including DFT and molecular dynamics simulations, were used to understand the oxidized and reduced forms of metallacarboranes and their intramolecular rotatory behavior. According to the low-spin assumption for metal ions, the intramolecular oscillations of cluster ligands in metallacarboranes are significantly influenced by the type of metal and correspond to the cellular uptake of these complexes .

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When bilingual speakers switch back to speaking in their native language (L1) after having used their second language (L2), they often experience difficulty in retrieving words in their L1. This phenomenon is referred to as the . We used the L2 after-effect as a lens to explore the neural bases of bilingual language control mechanisms.

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Background: Previous cross-sectional studies have found a beneficial relationship between greenspace and children's behaviour. Nevertheless, evidence on the mechanisms underlying this association remains scant. We examined whether the availability of greenspace was related to fewer behavioural problems in Polish children and investigated potential mechanisms.

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Hyperthermia (HT) is an anti-cancer therapy commonly used with radio and chemotherapies based on applying heat (39-45 °C) to inhibit tumor growth. However, controlling heat towards tumors and not normal tissues is challenging. Therefore, nanoparticles (NPs) are used in HT to apply heat only to tumor tissues to induce DNA damage and the expression of heat shock proteins, which eventually result in apoptosis.

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For bilinguals, speaking in a second language (L2) compared to the native language (L1) is usually more difficult. In this study we asked whether the difficulty in L2 production reflects increased demands imposed on domain-general or core language mechanisms. We compared the brain response to speech production in L1 and L2 within two functionally-defined networks in the brain: the Multiple Demand (MD) network and the language network.

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Multisensory awareness of one's own body relies on the integration of signals from various sensory modalities such as vision, touch, and proprioception. But how do blind individuals perceive their bodies without visual cues, and does the brain of a blind person integrate bodily senses differently from a sighted person? To address this question, we aimed to replicate the only two previous studies on this topic, which claimed that blind individuals do not experience the somatic rubber hand illusion, a bodily illusion triggered by the integration of correlated tactile and proprioceptive signals from the two hands. We used a larger sample size than the previous studies and added Bayesian analyses to examine statistical evidence in favor of the lack of an illusion effect.

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The low distribution of hydrophobic anticancer drugs in patients is one of the biggest limitations during conventional chemotherapy. SDS-based polyelectrolyte multicore nanocarriers (NCs) prepared according to the layer by layer (LbL) procedure can release paclitaxel (PTX), and selectively kill cancer cells. Our main objective was to verify the antitumor properties of PTX-loaded NCs and to examine whether the drug encapsulated in these NCs retained its cytotoxic properties.

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  • A study looked at whether spending time in nature (like parks and lakes) helps children aged 10-13 get smarter, especially those with and without ADHD.
  • Researchers checked how much green (plants) and blue (water) space kids were around their homes and tested their intelligence with special IQ tests.
  • They found that being around nature didn't really make a difference in intelligence, and physical activity didn't seem to help either.
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  • A study looked at how air pollution affects attention in kids aged 10 to 13 in Poland, focusing on two types of pollutants: particulate matter and nitrogen dioxide.
  • They tested different aspects of attention in children with ADHD and typically developing kids to see how pollution impacted their performance.
  • Results showed that bad air, especially nitrogen dioxide, could make it harder for kids to pay attention, with ADHD kids being affected the most.
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The Triple-Code Model stipulates that numerical information from different formats and modalities converges on a common magnitude representation in the Intraparietal Sulcus (IPS). To what extent the representations of all numerosity forms overlap remains unsolved. It has been postulated that the representation of symbolic numerosities (for example, Arabic digits) is sparser and grounded in an existing representation that codes for non-symbolic numerosity information (i.

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Blind individuals have superior abilities to perform perceptual tasks that rely on exteroceptive information, since visual deprivation is associated with heightened cross-modal plasticity. However, it is unknown whether neuroplasticity after visual loss also affects interoception, that is, the sensations arising from one's inner organs that convey information about the physiological state of the body. Herein, we examine the influence of blindness on cardiac interoception, which is an interoceptive submodality that has important links to emotional processing and bodily self-awareness.

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Objective: This study aimed to specify whether family communication and satisfaction are predictors of a child's executive functions and whether attention deficit hyperactivity disorder (ADHD) severity lies in the pathway between these variables.

Method: Two hundred Polish children with ADHD, aged 10 to 13, were tested using Conners 3, the PU1 Battery of Cognitive Tests and Stanford-Binet Intelligence Scale, Fifth Edition (SB5). Parents filled out the FACES IV-SOR questionnaire.

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Enhanced tactile acuity in blindness is among the most widely reported results of neuroplasticity following prolonged visual deprivation. However, tactile submodalities other than discriminative touch are profoundly understudied in blind individuals. Here, we examined the influence of blindness on two tactile submodalities, affective and discriminative touch, the former being vital for social functioning and emotional processing.

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Introduction: Poland's accession to the European Union intensified migration for work purposes. One of the most popular destinations for emigration was Great Britain, which allocates more money to health protection than Poland, where there is a widespread belief that the quality of public health care is poor. However, more negative opinions were expressed by migrants about health care in Great Britain.

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Overcoming the limitations for efficient and selective drug delivery is one of the most challenging obstacles for newly designed anticancer agents. In this study, we present two types of platinum-based nanoparticles (NP), ultrasmall 2 nm PtNPs and core-shell 30 nm Au@Pt, which can be highly cytotoxic in an oxidative environment and remain biologically inactive in cells with lower oxidative status. Our research highlighted the differences in platinum nanoparticle-induced chemotoxicity and is the first study examining its mechanism as a substantial aspect of Au@Pt/PtNPs biological activity.

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Background: Several studies, mostly based on the USA data, have reported that school greenspace was associated with better academic performance. However, nearly all of them were conducted on aggregated data. We are among the first individual data-based studies worldwide to examine whether exposure to school and residential green- and bluespace can boost academic performance.

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Training can influence behavioral performance and lead to brain reorganization. In particular, training in one modality, for example, auditory, can improve performance in another modality, for example, visual. Previous research suggests that one of the mechanisms behind this phenomenon could be the cross-modal recruitment of the sensory areas, for example, the auditory cortex.

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Introduction And Objective: Obstructive sleep apnea (OSA) is associated with cardiovascular risk and higher mortality. Assessment of subclinical organ lesions is significant for prevention of clinically manifested complications which might result in death. The aim of the study was to assess the prevalence of subclinical target organ damage in hypertensive patients with OSA, and to establish whether these lesions are dependent on the intensity of sleep-disordered breathing.

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  • The study investigates how exposure to particulate matter (PM) affects the brain development of children aged 10 to 13 in southern Poland, with a focus on those diagnosed with ADHD.
  • The research includes comprehensive psychological assessments and advanced MRI techniques to analyze cognitive and brain functionality among 800 participants.
  • By estimating PM exposure using various environmental models, the study aims to reveal potential links between air pollution and neurodevelopmental outcomes in children.
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