Katarzyna Pierzchala

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Publications associées (31)

In Vivo Longitudinal 1H MRS Study of Hippocampal, Cereberal and Striatal Metabolic Changes in the Adult Brain Using an Animal Model of Chronic Hepatic Encephalopathy

Cristina Ramona Cudalbu, Katarzyna Pierzchala, Veronika Rackayová, Dario Sessa, Dunja Simicic, Stefanita-Octavian Mitrea

LIPPINCOTT WILLIAMS & WILKINS2019

Metabolomics reveals tepotinib‐related mitochondrial dysfunction in MET activating mutations‐driven models

Katarzyna Pierzchala

Genetic aberrations in the hepatocyte growth factor receptor tyrosine kinase MET induce oncogenic addiction in various types of human cancers, advocating MET as a viable anticancer target. Here, we report that MET signaling plays an important role in confe ...

2019

Brain Regional Susceptibility to Oxidative Stress in a Rat Model of Chronic Hepatic Encephalopathy: In-Vivo 1H MRS, Ex-Vivo ESR Spectroscopy and Histology Findings

Rolf Gruetter, Cristina Ramona Cudalbu, Andrzej Sienkiewicz, Katarzyna Pierzchala, Veronika Rackayová, Dario Sessa, Dunja Simicic

LIPPINCOTT WILLIAMS & WILKINS2019

Longitudinal neurometabolic changes in the hippocampus of a rat model of chronic hepatic encephalopathy

Cristina Ramona Cudalbu, Katarzyna Pierzchala, Jocelin Grosse, Veronika Rackayová

Background & Aims: The sequence of events in hepatic encephalopathy (HE) remains unclear. Using the advantages of in vivo 1H-MRS (9.4T) we aimed to analyse the time-course of disease in an established model of type C HE by analysing the longitudinal change ...

2019

Hippocampal and Cerebellar Astrocytes Morphological Alterations in a Rat Model of Chronic Hepatic Encephalopathy

Cristina Ramona Cudalbu, Katarzyna Pierzchala, Dunja Simicic

LIPPINCOTT WILLIAMS & WILKINS2019

Loading and release of internally self-assembled emulsions embedded in a magnetic hydrogel

László Forró, Andrzej Sienkiewicz, Katarzyna Pierzchala

We have investigated drug loading and release from thermosensitive gel emulsions with external triggering by an alternating magnetic field (AMF) for on-demand drug delivery. Superparamagnetic iron oxide nanoparticles dispersed in gel emulsions were used to ...

Amer Inst Physics2014

Photocatalytic and phototoxic properties of TiO2-based nanofilaments: ESR and AFM assays

László Forró, Arnaud Magrez, Andrzej Kulik, Andrzej Sienkiewicz, Katarzyna Pierzchala

There is uncertainty in understanding of the relationship between physico-chemical parameters of nanosized titanium dioxide (nano-TiO2) and its toxicity when brought into contact with living cells. This study provides a multidisciplinary experimental insig ...

Informa Healthcare2012

Synthesis, Characterization, and Photocatalytic Activities of Nanoparticulate N, S-Codoped TiO2 Having Different Surface-to-Volume Ratios

César Pulgarin, László Forró, Juan Kiwi, Jacques-Edouard Moser, Andrzej Sienkiewicz, Katarzyna Pierzchala, Julian Andrés Rengifo Herrera

An efficient, visible light active, N, S-codoped TiO2-based photocatalyst was prepared by reacting thiourea with nanoparticulate anatase TiO2. Commercial anatase powders were manually ground with thiourea and annealed at 400 degrees C in two crucibles with ...

American Chemical Society2010

Oxidative Stress on Human Cells in the Presence of Nano-Sized Titanium Dioxide

Katarzyna Pierzchala

Nanosized TiO2 (nanoTiO2) is one of the most widely used nanomaterials, with applications ranging from paints, self-cleaning coatings, pharmaceuticals, to food and cosmetics. In spite of this massive use of nanoTiO2, its biological activity and toxicity re ...

EPFL2010

Atom-Transfer Radical Addition Reactions Catalyzed by RuCp* Complexes: A Mechanistic Study

Kay Severin, Andrzej Sienkiewicz, Gregor Kiefer, Katrin Anne Thommes, Katarzyna Pierzchala

Kinetic and spectroscopic analyses were performed to gain information about the mechanism of atom-transfer radical reactions catalyzed by the complexes [RuCl2Cp*(PPh3)] and [RuClCp*(PPh3)2] (Cp*=pentamethylcyclopentadienyl), in the presence and in the abse ...

2009

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