Katarzyna Chałaśkiewicz

Ms. Katarzyna Chałaśkiewicz

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Verified
Journal Article
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KKKatarzyna Kępka
Katarzyna Kępka
KCKatarzyna Chałaśkiewicz
Katarzyna Chałaśkiewicz
MOMagdalena Ogłuszka
Magdalena Ogłuszka
MBMateusz Borkowski
Mateusz Borkowski
ALAdam Lepczyński
Adam Lepczyński
MPMariusz Pierzchała
Mariusz Pierzchała
Aflatoxins, toxic secondary metabolites produced primarily by Aspergillus flavus and Aspergillus parasiticus, pose a significant global health concern due to their frequent presence in crops, food, and feed—especially under climate change conditions. This review addresses the growing threat of aflatoxins by analyzing recent advances in detection and mitigation. A comprehensive literature review was conducted, focusing on bioremediation, physical and chemical detoxification, and fungal growth inhibition strategies. The occurrence of aflatoxins in water systems was also examined, along with current detection techniques, removal processes, and regulatory frameworks. Emerging technologies such as molecular diagnostics, immunoassays, biosensors, and chromatographic methods are discussed for their potential to improve monitoring and control. Key findings highlight the increasing efficacy of integrative approaches combining biological and technological solutions and the potential of AI-based tools and portable devices for on-site detection. Intelligent packaging and transgenic crops are also explored for their role in minimizing contamination at the source. Overall, this review emphasizes the importance of continued interdisciplinary research and the development of sustainable, adaptive strategies to mitigate aflatoxin risks, thereby supporting food safety and public health in the face of environmental challenges.

Verified
Journal Article
Open access
PDF file
KCKatarzyna Chałaśkiewicz
Katarzyna Chałaśkiewicz
KKKatarzyna Kępka
Katarzyna Kępka
RSRafał Radosław Starzyński
Rafał Radosław Starzyński
MOMagdalena Ogłuszka
Magdalena Ogłuszka
MBMateusz Borkowski
Mateusz Borkowski
MPMariusz Pierzchała
Mariusz Pierzchała
Aflatoxins, toxic secondary metabolites produced by Aspergillus species, are widespread contaminants in food and feed, with aflatoxin B1 (AFB1) recognized as the most potent carcinogen. Climate change increases the risk of contamination by promoting fungal proliferation. While the hepatotoxic and enterotoxic effects of aflatoxins are well established, emerging evidence highlights their immunosuppressive and neurotoxic potential. Notably, AFB1 disrupts gut microbiota, compromises intestinal barrier integrity, and induces neuroinflammation via the microbiota–gut–brain axis. Probiotics have shown promise in mitigating these effects by modulating microbial balance, enhancing barrier function, and reducing neuroinflammatory responses. This review summarizes current findings on the systemic toxicity of aflatoxins—particularly their impact on the gut–brain axis—and evaluates the therapeutic potential of probiotics in counteracting aflatoxin-induced damage.

5 August 2021 in Molecules
Verified
Journal Article
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MZMalgorzata Zakłos-Szyda
Malgorzata Zakłos-Szyda
Nina PietrzykNina Pietrzyk
Nina Pietrzyk
AKAgnieszka Kowalska-Baron
Agnieszka Kowalska-Baron
ANAdriana Maryla Nowak
Adriana Maryla Nowak
KCKatarzyna Chałaśkiewicz
Katarzyna Chałaśkiewicz
Maria KoziołkiewiczMaria Koziołkiewicz
Maria Koziołkiewicz
The latest data link the chronic consumption of large amounts of fructose present in food with the generation of hypertension and disturbances in carbohydrate and lipid metabolism, which promote the development of obesity, non-alcoholic fatty liver disease, insulin resistance, and type 2 diabetes. This effect is possible after fructose is absorbed by the small intestine cells and, to a lesser extent, by hepatocytes. Fructose transport is dependent on proteins from the family of glucose transporters (GLUTs), among which GLUT5 selectively absorbs fructose from the intestine. In this study, we examined the effect of four phenolic-rich extracts obtained from A. graveolens, B. juncea, and M. chamomilla on fructose uptake by Caco-2 cells. Extracts from B. juncea and M. chamomilla most effectively reduced fluorescent fructose analogue (NBDF) accumulation in Caco-2, as well as downregulated GLUT5 protein levels. These preparations were able to decrease the mRNA level of genes encoding transcription factors regulating GLUT5 expression-thioredoxin-interacting protein (TXNIP) and carbohydrate-responsive element-binding protein (ChREBP). Active extracts contained large amounts of apigenin and flavonols. The molecular docking simulation suggested that some of identified phenolic constituents can play an important role in the inhibition of GLUT5-mediated fructose transport.

18 October 2025 in Nutrients
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Prarthana SharmaPrarthana Sharma
Prarthana Sharma
Varunkumar AsediyaVarunkumar Asediya
Varunkumar Asediya
GKGarima Kalra
Garima Kalra
Sharmin SultanaSharmin Sultana
Sharmin Sultana
NPNihal Purohit
Nihal Purohit
MPMariusz Pierzchała
Mariusz Pierzchała
Silymarin, a flavonolignan-rich extract of Silybum marianum, is widely recognized for its hepatoprotective potential. While rodent studies predominate, pigs (Sus scrofa) offer a more translationally relevant model due to their hepatic architecture, bile acid composition, and transporter expression, which closely resemble those of humans. This narrative review synthesises current evidence on the chemistry, pharmacokinetics, biodistribution, and hepatoprotective activity of silymarin in porcine models. Available studies demonstrate that when adequate intrahepatic exposure is achieved, particularly through optimised formulations, silymarin can attenuate oxidative stress, suppress inflammatory signalling, stabilise mitochondria, and modulate fibrogenic pathways. Protective effects have been reported across diverse porcine injury paradigms, including toxin-induced necrosis, ethanol- and diet-associated steatosis, metabolic dysfunction, ischemia–reperfusion injury, and partial hepatectomy. However, the evidence base remains limited, with few long-term studies addressing fibrosis or regeneration, and methodological heterogeneity complicates the comparison of data across studies. Current knowledge gaps in silymarin research include inconsistent chemotype characterization among plant sources, limited reporting of unbound pharmacokinetic parameters, and variability in histological scoring criteria across studies, which collectively hinder cross-study comparability and mechanistic interpretation. Advances in analytical chemistry, transporter biology, and formulation design are beginning to refine the interpretation of exposure–response relationships. Advances in analytical chemistry, transporter biology, and formulation design are beginning to refine the interpretation of exposure–response relationships. In parallel, emerging computational approaches, including machine-learning-assisted chemotype fingerprinting, automated histology scoring, and Bayesian exposure modeling, are being explored as supportive tools to enhance reproducibility and translational relevance; however, these frameworks remain exploratory and require empirical validation, particularly in modeling enterohepatic recirculation. Collectively, current porcine evidence supports silymarin as a context-dependent yet credible hepatoprotective agent, highlighting priorities for future research to better define its therapeutic potential in clinical nutrition and veterinary practice.

27 September 2025 in Food and Chemical Toxicology
Verified
Journal Article
Closed access
KKKatarzyna Kępka-Borkowska
Katarzyna Kępka-Borkowska
MBMateusz Borkowski
Mateusz Borkowski
KCKatarzyna Chałaśkiewicz
Katarzyna Chałaśkiewicz
RSRafał Radosław Starzyński
Rafał Radosław Starzyński
MOMagdalena Ogłuszka
Magdalena Ogłuszka
MPMariusz Pierzchała
Mariusz Pierzchała

1 September 2024 in ImmunoHorizons
Verified
Journal Article
Open access
JPJoanna Pastwińska
Joanna Pastwińska
IKIwona Karwaciak
Iwona Karwaciak
KKKaja Karaś
Kaja Karaś
ASAnna Sałkowska
Anna Sałkowska
KCKatarzyna Chałaśkiewicz
Katarzyna Chałaśkiewicz
Marcin RatajewskiMarcin Ratajewski
Marcin Ratajewski
The human body harbors a substantial population of bacteria, which may outnumber host cells. Thus, there are multiple interactions between both cell types. Given the common presence of Staphylococcus aureus in the human body and the role of Th17 cells in controlling this pathogen on mucous membranes, we sought to investigate the effect of α-hemolysin, which is produced by this bacterium, on differentiating Th17 cells. RNA sequencing analysis revealed that α-hemolysin influences the expression of signature genes for Th17 cells as well as genes involved in epigenetic regulation. We observed alterations in various histone marks and genome methylation levels via whole-genome bisulfite sequencing. Our findings underscore how bacterial proteins can significantly influence the transcriptome, epigenome, and phenotype of human Th17 cells, highlighting the intricate and complex nature of the interaction between immune cells and the microbiota.