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Wyświetlanie 1-2 z 2
Tytuł:
A levels of endogenous gonadal hormones and their relationship with selected coronary artery disease risk factors among young women post myocardial infarction
Autorzy:
Ablewska, Urszula
Jankowski, Krzysztof
Rzewuska, Ewa
Liszewska-Pfejfer, Danuta
Hryniewiecki, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1039893.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
myocardial infarction
gonadal hormones
risk factors
young women
Opis:
In recent decades a significant raise in the incidence of myocardial infarction among young women has been recorded. It is presumed that, apart from the classical risk factors, other reasons exist for premature atherosclerosis in young women, related to the homeostasis of gonadal hormones. The aim of the study was to analyze the levels of gonadal hormones (estradiol, progesterone, follicle-stimulating hormone, luteinizing hormone, testosterone and dehydroepiandrosterone) measured in the luteal phase, in 65 normally menstruating women post myocardial infarction (MI) and to investigate a possible relationship between the hormone profile and selected coronary artery disease (CAD) risk factors. The levels of gonadal hormones: estradiol, progesterone, follicle-stimulating hormone, luteinizing hormone, testosterone and dehydroepiandrosterone were measured in the luteal phase. All examined women had normal mean levels of gonadal hormones. In the post MI patients leading a sedentary life style, a significantly lower mean progesterone concentration was observed (16.29 ± 9.11 versus 29.43 ± 21.14 nmol/l, p < 0.05) and significantly higher mean testosterone concentration (2.34 ± 0.98 versus 1.76 ± 1.09 nmol/l, p < 0.05) when compared to patients from the same group, but leading a more active life. In obese post MI women (BMI ≥ 30 kg/m2) a lower mean concentration of progesterone was detected (18.02 ± 8.12 versus 26.16 ± 14.72 nmol/l, p < 0.05), than in slimmer patients from the same group. In post MI women with a positive family history for CAD, a significantly higher mean concentration of testosterone was detected (2.31 ± 1.22 versus 1.67 ± 0.74 nmol/l, p < 0.05) than in patients with no family history. The results suggest a correlation between levels of gonadal hormones and classical CAD risk factors.
Źródło:
Acta Biochimica Polonica; 2011, 58, 3; 385-389
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation of Nicotiana plumbaginifolia cDNAs encoding isoforms of serine acetyltransferase and O-acetylserine (thiol) lyase in a yeast two-hybrid system with Escherichia coli cysE and cysK genes as baits.
Autorzy:
Liszewska, Frantz
Gaganidze, Dali
Sirko, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1041469.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
yeast two-hybrid system
genome walking
cysteine biosynthesis
cDNA cloning
tobacco
Opis:
We applied the yeast two-hybrid system for screening of a cDNA library of Nicotiana plumbaginifolia for clones encoding plant proteins interacting with two proteins of Escherichia coli: serine acetyltransferase (SAT, the product of cysE gene) and O-acetylserine (thiol) lyase A, also termed cysteine synthase (OASTL-A, the product of cysK gene). Two plant cDNA clones were identified when using the cysE gene as a bait. These clones encode a probable cytosolic isoform of OASTL and an organellar isoform of SAT, respectively, as indicated by evolutionary trees. The second clone, encoding SAT, was identified independently also as a "prey" when using cysK as a bait. Our results reveal the possibility of applying the two-hybrid system for cloning of plant cDNAs encoding enzymes of the cysteine synthase complex in the two-hybrid system. Additionally, using genome walking sequences located upstream of the sat1 cDNA were identified. Subsequently, in silico analyses were performed aiming towards identification of the potential signal peptide and possible location of the deduced mature protein encoded by sat1.
Źródło:
Acta Biochimica Polonica; 2005, 52, 1; 117-128
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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