Publications by authors named "A ZAKRZEWSKI"
Article Synopsis
- The evolutionary origin of Bilateria is unclear, but similarities between cnidarian-like larvae and simple flatworms suggest a connection, linking Xenacoelomorpha as a potential early branch of Bilateria.
- This study focuses on assembling and analyzing the genome of a marine xenacoelomorph, discovering it has a genome size of ~111 Mbp with characteristics similar to other bilaterians.
- The findings indicate that despite its simple body plan, the xenacoelomorph has a complex genome and retains many features typical of bilaterians, challenging previous assumptions about its evolutionary simplicity.
Allergen immunotherapy (AIT) is a well-established and efficient method of causative treatment for allergic rhinitis, asthma and insect venom allergy. Traditionally, a recent history of malignant neoplasm is regarded as a contraindication to AIT due to concerns that AIT might stimulate tumor growth. However, there are no data confirming that the silencing of the Th2 response affects prognosis in cancer.
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- Phylogenetic research has grouped previously isolated groups like nematodermatids, acoels, and xenoturbelids into a new phylum called Xenacoelomorpha.
- Some studies suggest that Xenacoelomorpha may be closely related to Ambulacraria, while others indicate it could be a sibling group to all Bilateria.
- Research using single-cell RNA sequencing in the marine worm Xenoturbella bocki reveals similarities in nerve nets, muscles, and glands that support the idea of shared evolutionary traits among various animal groups, reinforcing the monophyly of Xenacoelomorpha.
In this study, the tetracycline resistance of Enterococcus faecalis strains isolated from food was determined and molecular analyses of the resistance background were performed by determining the frequency of selected tetracycline resistance genes. In addition, the effect of high-pressure stress (400 and 500 MPa) on the expression of selected genes encoding tetracycline resistance was determined, as well as changes in the frequency of transfer of these genes in isolates showing sensitivity to tetracyclines. In our study, we observed an increase in the expression of genes encoding tetracyclines, especially the tet(L) gene, mainly under 400 MPa pressure.
View Article and Find Full Text PDFTau rhythms are largely defined by sound responsive alpha band (~8-13 Hz) oscillations generated largely within auditory areas of the superior temporal gyri. Studies of tau have mostly employed magnetoencephalography or intracranial recording because of tau's elusiveness in the electroencephalogram. Here, we demonstrate that independent component analysis (ICA) decomposition can be an effective way to identify tau sources and study tau source activities in EEG recordings.
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