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Wyświetlanie 1-15 z 19
Tytuł:
Benzodiazepine binding to mitochondrial membranes of the amoeba Acanthamoeba castellanii and the yeast Saccharomyces cerevisiae.
Autorzy:
Slocinska, Malgorzata
Szewczyk, Adam
Hryniewiecka, Lilla
Kmita, Hanna
Powiązania:
https://bibliotekanauki.pl/articles/1041507.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Saccharomyces cerevisiae
Acathamoeba castellanii
Ro5-4864
mitochondrial benzodiazepine receptor
Opis:
Benzodiazepine binding sites were studied in mitochondria of unicellular eukaryotes, the amoeba Acathamoeba castellanii and the yeast Saccharomyces cerevisiae, and also in rat liver mitochondria as a control. For that purpose we applied Ro5-4864, a well-known ligand of the mitochondrial benzodiazepine receptor (MBR) present in mammalian mitochondria. The levels of specific [3H]Ro5-4864 binding, the dissociation constant (KD) and the number of [3H]Ro5-4864 binding sites (Bmax) determined for fractions of the studied mitochondria indicate the presence of specific [3H]Ro5-4864 binding sites in the outer membrane of yeast and amoeba mitochondria as well as in yeast mitoplasts. Thus, A. castellanii and S. cerevisiae mitochondria, like rat liver mitochondria, contain proteins able to bind specifically [3H]Ro5-4864. Labeling of amoeba, yeast and rat liver mitochondria with [3H]Ro5-4864 revealed proteins identified as the voltage dependent anion selective channel (VDAC) in the outer membrane and adenine nucleotide translocase (ANT) in the inner membrane. Therefore, the specific MBR ligand binding is not confined only to mammalian mitochondria and is more widespread within the eukaryotic world. However, it can not be excluded that MBR ligand binding sites are exploited efficiently only by higher multicellular eukaryotes. Nevertheless, the MBR ligand binding sites in mitochondria of lower eukaryotes can be applied as useful models in studies on mammalian MBR.
Źródło:
Acta Biochimica Polonica; 2004, 51, 4; 953-962
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does the energy state of mitochondria influence the surface potential of the inner mitochondrial membrane? A critical appraisal
Autorzy:
Wojtczak, Lech
Nałęcz, Maciej
Famulski, Konrad
Dygas, Anna
Szewczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1045919.pdf
Data publikacji:
1987
Wydawca:
Polskie Towarzystwo Biochemiczne
Źródło:
Acta Biochimica Polonica; 1987, 34, 3; 299-318
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Guidelines of the Association of Polish Surgeons and the Polish Society of Surgical Oncology on the accreditation of healthcare centers providing cytoreductive surgery and HIPEC for primary and secondary peritoneal cancers
Autorzy:
Jastrzębski, Tomasz
Richter, Piotr
Zegarski, Wojciech
Dziki, Adam
Wallner, Grzegorz
Jeziorski, Arkadiusz
Wysocki, Wojciech
Jackowski, Marek
Bębenek, Marek
Olesiński, Tomasz
Polkowski, Wojciech
Wyrwicz, Lucjan
Wydra, Dariusz
Biernat, Wojciech
Czauderna, Piotr
Studniarek, Michał
Polec, Tomasz
Owczuk, Radosław
Sommer, Anna
Szewczyk, Krzysztof
Mielko, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1391728.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
accreditation
cytoreduction
HIPEC
peritoneal cancer
quality of treatment
Opis:
Surgical interventions in patients with peritoneal metastases combined with hyperthermic intraperitoneal chemotherapy (HIPEC) and systemic treatment are becoming more common and, when applied to selected patient groups, they reach 5-year survival rates of 32–52%. Good clinical outcomes require experienced and well-equipped healthcare centers, experienced surgical team and adequate patient qualification process. As a result of the discussion on the need for evaluation of quality of care and treatment outcomes and at the request of the Peritoneal Cancer Section of the Polish Society of Surgical Oncology, accreditation standards have been developed and the Accreditation Committee has been established for healthcare centers providing cytoreductive surgery and HIPEC for the management of primary and secondary peritoneal cancers.
Źródło:
Polish Journal of Surgery; 2020, 92, 4; 47-53
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In memory of Professor Lech Wojtczak, researcher and person
Autorzy:
Nałęcz, Maciej J.
Duszyński, Jerzy
Szewczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/704552.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bioenergetics
Lech Wojtczak
The Nencki Institute
remembrance
Opis:
Professor Lech Wojtczak spent his entire scientific life at the Nencki Institute of Experimental Biology PAS, where he worked since 1947. He is the author or co-author of two hundred scientific papers, promoted 15 doctors of science, was the Full Member of PAS and has been awarded with several prizes and honors. Among his students are three successive directors of the Nencki Institute, the authors of the present article. Scientific interests of Professor Lech Wojtczak were always dealing with bioenergectics, a discipline that he led in Poland and Eastern-Central Europe. In particular, his studies focused on the role of fatty acids and their derivatives on bioenergetics, on the regulatory role of surface potential of biomembranes on enzymatic and transport activities, on the regulatory role of calcium and magnesium in mitochondria, on the role of free oxigen radicals in bioenergetics, etc. Apart from being a great scientist, Lech Wojtczak was also a fantastic teacher, and an excellent scientific supervisor. Being well recognized in the world, he was placing members of his research group in foreign laboratories, as well as was sending tchem to courses and conferences. This was opening their minds to the world, and to other cultures, and allowed Lech Wojtczak to form from his collaborators the next generation of good scientists and future leaders. The list of the most important pupils of Professor Wojtczak is given in the article. Lech was also excellent in social contacts, and in creating a friendly atmosphere. Together with his wife Anna, they kept an open home, often inviting collaborators to parties that usually led to long scientific discussions. With the sudden death of Pofessor Lech Wojtczak Polish science suffered a great loss. This eminent researcher, the father of Polish bioenergetics, but also a warm and modest person, will be dearly missed.
Źródło:
Nauka; 2019, 4
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intracellular potassium and chloride channels: An update.
Autorzy:
Dębska, Grażyna
Kicińska, Anna
Skalska, Jolanta
Szewczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1044174.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
ATP
ion channels
chromaffin granules
mitochondria
chloride channel
potassium channel openers
sulfonylurea
Opis:
Channels selective for potassium or chloride ions are present in all intracellular membranes such as mitochondrial membranes, sarcoplasmic/endoplasmic reticulum, nuclear membrane and chromaffin granule membranes. They probably play an important role in events such as acidification of intracellular compartments and regulation of organelle volume. Additionally, intracellular ion channels are targets for pharmacologically active compounds, e.g. mitochondrial potassium channels interact with potassium channel openers such as diazoxide. This review describes current observations concerning the properties and functional roles of intracellular potassium and chloride channels.
Źródło:
Acta Biochimica Polonica; 2001, 48, 1; 137-144
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mitochondrial potassium and chloride channels.
Autorzy:
Kicińska, Anna
Dębska, Grażyna
Kunz, Wolfram
Szewczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1044286.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
ATP
ion channels
mitochondria
chloride channel
potassium channel
channel openers
sulfonylurea
Opis:
Channels selective for potassium or chloride ions are present in inner mitochondrial membranes. They probably play an important role in mitochondrial events such as the formation of ΔpH and regulation of mitochondrial volume changes. Mitochondrial potassium and chloride channels could also be the targets for pharmacologically active compounds such as potassium channel openers and antidiabetic sulfonylureas. This review describes the properties, pharmacology, and current observations concerning the functional role of mitochondrial potassium and chloride channels.
Źródło:
Acta Biochimica Polonica; 2000, 47, 3; 541-551
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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