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AmiRNA Designer - new method of artificial miRNA design

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Mickiewicz A., Rybarczyk A., Sarzynska J., Figlerowicz M., Blazewicz J.
Acta Biochimica Polonica
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2016
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vol. 63
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issue 1
71-77
EN
MicroRNAs (miRNAs) are small non-coding RNAs that have been found in most of the eukaryotic organisms. They are involved in the regulation of gene expression at the post-transcriptional level in a sequence specific manner. MiRNAs are produced from their precursors by Dicer-dependent small RNA biogenesis pathway. Involvement of miRNAs in a wide range of biological processes makes them excellent candidates for studying gene function or for therapeutic applications. For this purpose, different RNA-based gene silencing techniques have been developed. Artificially transformed miRNAs (amiRNAs) targeting one or several genes of interest represent one of such techniques being a potential tool in functional genomics. Here, we present a new approach to amiRNA*design, implemented as AmiRNA Designer software. Our method is based on the thermodynamic analysis of the native miRNA/miRNA* and miRNA/target duplexes. In contrast to the available automated tools, our program allows the user to perform analysis of natural miRNAs for the organism of interest and to create customized constraints for the design stage. It also provides filtering of the amiRNA candidates for the potential off-targets. AmiRNA Designer is freely available at http://www.cs.put.poznan.pl/arybarczyk/AmiRNA/.
2
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Carotid access in Transcatheter Aortic Valve Implantation – an alternative to the gold standard. A single-center experience

86%
Stańska A., Wierzbowska A., Targoński R., Karolak W., Mickiewicz A., Jaguszewski M., Jagielak D.
European Journal of Translational and Clinical Medicine
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2019
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vol. 2
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issue 2
80-84
EN
Background: Transfemoral access is regarded as the TAVI gold standard for the transcatheter aortic valve implantation (TAVI) procedure. However, other options for vascular access have developed in the last few years. Access via the carotid artery is one such alternative. Materials and methods: The study included 9 elderly patients who underwent transcarotid TAVI procedure at the Cardiac and Vascular Surgery Department of the Medical University of Gdańsk. Procedures were performed by a local Heart Team in a hybrid operating room under general anesthesia. Data was collected before the implantation and at discharge. Results: The mean patients’ age was 81 years of age (64-88) and the mean logistic EuroSCORE was 10.8 (7-16). Implantations were performed with 100% device success rate. Intra-operative valve-in-valve procedure was performed in one patient; there were no access-related and valve-related complications during the surgery. Post-procedural complications included minor bleeding, hematoma and pneumothorax. Echocardiographic parameters were significantly improving after the procedure. The mean hospital stay was 5 days (2-7 days). Conclusions: Transcatheter aortic valve implantation via the carotid artery appears to be safe and effective alternative to standard TAVI vascular access.
3
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Content available

Carotid access in Transcatheter Aortic Valve Implantation – an alternative to the gold standard. A single-center experience

86%
Stańska A., Wierzbowska A., Targoński R., Karolak W., Mickiewicz A., Jaguszewski M., Jagielak D.
European Journal of Translational and Clinical Medicine
|
2020
|
vol. 2
|
issue 2
80-84
EN
Background: Transfemoral access is regarded as the TAVI gold standard for the transcatheter aortic valve implantation (TAVI) procedure. However, other options for vascular access have developed in the last few years. Access via the carotid artery is one such alternative. Materials and methods: The study included 9 elderly patients who underwent transcarotid TAVI procedure at the Cardiac and Vascular Surgery Department of the Medical University of Gdańsk. Procedures were performed by a local Heart Team in a hybrid operating room under general anesthesia. Data was collected before the implantation and at discharge. Results: The mean patients’ age was 81 years of age (64-88) and the mean logistic EuroSCORE was 10.8 (7-16). Implantations were performed with 100% device success rate. Intra-operative valve-in-valve procedure was performed in one patient; there were no access-related and valve-related complications during the surgery. Post-procedural complications included minor bleeding, hematoma and pneumothorax. Echocardiographic parameters were significantly improving after the procedure. The mean hospital stay was 5 days (2-7 days). Conclusions: Transcatheter aortic valve implantation via the carotid artery appears to be safe and effective alternative to standard TAVI vascular access.
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