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Wyszukujesz frazę "Aebisher, David" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Congenital adrenal hyperplasia: clinical symptoms and diagnostic methods
Autorzy:
Podgórski, Rafał
Aebisher, David
Stompor, Monika
Podgórska, Dominika
Mazur, Artur
Powiązania:
https://bibliotekanauki.pl/articles/1038519.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Congenital Adrenal Hyperplasia
CAH
steroidogenesis
21-hydroxylase deficiency
Opis:
The aim of this paper is a straightforward presentation of the steroidogenesis process and the most common type of congenital adrenal hyperplasia (CAH) - 21-hydroxylase deficiency - as well as the analytical diagnostic methods that are used to recognize this disease. CAH is a family of common autosomal recessive disorders characterized by impaired adrenal cortisol biosynthesis with associated androgen excess due to a deficiency of one or more enzymes in the steroidogenesis process within the adrenal cortex. The most common and prototypical example of the CAH disorders group (90-95%) is caused by 21-hydroxylase deficiency. Less frequent types of CAH are 11β-hydroxylase deficiency (up to 8% of cases), 17α-hydroxylase deficiency, 3β-hydroxysteroid dehydrogenase deficiency, P450 oxidoreductase deficiency and StAR deficiencies. In the 21-hydroxylase and 11β-hydroxylase deficiency, only adrenal steroidogenesis is affected, whereas a defect in 3β-hydroxysteroid dehydrogenase or 17α-hydroxylase also involves gonadal steroid biosynthesis. Many countries have introduced newborn screening programs based on immunoassays measuring 17-hydroxyprogesterone from blood spots used for other neonatal screening tests which enable faster diagnosis and treatment of CAH. Currently, chromatographic techniques coupled with mass spectrometry are gaining popularity due to an increase in the reliability of the test results.
Źródło:
Acta Biochimica Polonica; 2018, 65, 1; 25-33
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and biological evaluation of 4-O-acetyl-isoxanthohumol and its analogues as antioxidant and antiproliferative agents
Autorzy:
Stompor, Monika
Świtalska, Marta
Podgórski, Rafał
Uram, Łukasz
Aebisher, David
Wietrzyk, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1038626.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
O-acylated flavanones
antiproliferative effect
isoxanthohumol
hop flavonoids
Opis:
Isoxanthohumol (2) and its 4'-O-monoacylated (3) and 7,4'-O-diacetylated (4) derivatives were synthesized and evaluated in vitro for their cytotoxic activity against several cancer cell lines of various origins: MCF-7 (breast), A549 (lung), MESSA (uterine sarcoma), LoVo (colon), drug-resistant human cancer cells (MESSA/DX and LoVo/DX), glioblastoma (U-118 MG), and also towards the non-cancerous cell line MCF-10A (normal breast cells). An antiproliferative assay indicates that 7,4'-di-O-acylisoxanthohumol (4) has similar cytotoxicity to its precursor, isoxanthohumol (2), against selected cell lines (A549, MES-SA, MES-SA/5DX, and U-118 MG). Compound 4 was only slightly more cytotoxic to lung, colon, breast (cancerous and normal) and uterine sarcoma (drug sensitive and drug resistant) cell lines compared to its monoacylated derivative (3). Both acylated isoxanthohumols showed preferential activity against tumor cells (MCF-7) and low cytotoxicity to normal cells (MCF-10A), which suggests selectivity of the acylated isoxanthohumols towards cancer cells. Additionally, the activity of the acylated isoxanthohumols was higher than for 2. To the best of our knowledge this is the first report on bioactivity of monoacylated isoxanthohumol (3) and its ester derivatives as antiproliferative compounds in drug resistant cell cultures. Acylation of 2 decreased the antioxidant activity determined by the DPPH method in the order isoxanthohumol (2) >4'-O-acetylisoxanthohumol (3) >7,4'-di-O-acetylisoxanthohumol (4).
Źródło:
Acta Biochimica Polonica; 2017, 64, 3; 577-583
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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