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Wyszukujesz frazę "sister-chromatid exchange" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Boric acid as a protector against paclitaxel genotoxicity
Autorzy:
Turkez, Hasan
Tatar, Abdulgani
Hacımuftuoglu, Ahmet
Ozdemir, Ebru
Powiązania:
https://bibliotekanauki.pl/articles/1040430.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
boric acid
paclitaxel
sister chromatid exchange
micronucleus
nuclear division index
Opis:
Paclitaxel (PAC) is an anticancer drug used for treatments of breast, ovarian and lung cancers. However, little data is available in the literature on its potential genotoxicity on healthy human cells. On the other hand, boron deficiency and supplementation exert important biological effects in human and animal tissues. The biological effects of dietary boron are defined, but its interaction with PAC is not known for therapeutic uses. The aim of the present study was to determine whether boric acid (BA) confer a protection against PAC genotoxicity. After the application of PAC (10 or 20 µg/l) and BA (2.5 or 5 mg/l), the genotoxic effects were assessed by sister chromatid exchange (SCE) and micronucleus (MN) tests in human blood cultures. We also analyzed nuclear division index (NDI) in peripheral lymphocytes. Our results showed that PAC significantly (P<0.05) increased the frequencies of SCEs and the formations of MNs in peripheral lymphocytes as compared to controls. PAC decreased the nuclear division index in lymphocyte cultures. Boric acid did not show cytotoxic or genotoxic effects at the concentrations tested. Furthermore, the PAC-induced increases in the genotoxicity and cytotoxicity indices were diminished by the addition of BA. The present study suggests for the first time that BA can prevent the genotoxicity of PAC on human lymphocytes.
Źródło:
Acta Biochimica Polonica; 2010, 57, 1; 95-97
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study on influence of different signs of air-ions on sister-chromatid exchange frequency and chromosome aberration in human peripheral blood lymphocytes
Autorzy:
Wiszniewski, A
Kretowicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/2043653.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
blood lymphocyte
sister-chromatid exchange
man
peripheral blood lymphocyte
lymphocyte
chromosome aberration
Źródło:
Journal of Applied Genetics; 1999, 40, 2; 129-134
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of diethylenetriamine [DETA] and sodium nitroprusside [NaNP] on sister chromatid exchange frequency and cell kinetics in cultured human lymphocytes
Autorzy:
Perkowska, M
Szczygiel, M.
Wozniak, A.
Limon, J.
Powiązania:
https://bibliotekanauki.pl/articles/2041984.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cell cycle
sodium nitroprusside
restenosis
genetics
man
cell kinetics
lymphocyte
diethylenetriamine
sister chromatid exchange
myocardial ischaemia
Źródło:
Journal of Applied Genetics; 2001, 42, 2; 233-235
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of acetylsalicylic acid and a new pyrazine derivative PD-101 on sister chromatid exchange frequency and cell kinetics in cultured human lymphocytes
Autorzy:
Wozniak, A
Limon, J.
Petrusewicz, J.
Kaliszan, R.
Powiązania:
https://bibliotekanauki.pl/articles/2044238.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pyrazine
cell cycle
human lymphocyte
cytogenetic analysis
sister chromatid exchange
kinetics
chromosome aberration
in vitro
acetylsalicylic acid
Opis:
Acetylsalicylic acid (ASA) and α-2-pyrazylidene-α-cyano N-butyl acetamide (PD-101), a new antiaggregatory pyrazine derivative were tested for their genotoxicity in human lymphocytes in vitro using the sister chromatid exchange (SCE) technique. Both compounds were found to be inactive in inducing SCE in concentration from 1 µM up to 1000 µM. The agents displayed inhibitory effect on cell kinetics.
Źródło:
Journal of Applied Genetics; 1998, 39, 3; 281-287
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of chromosome aberrations, sister chromatid exchanges [SCE] and cell division kinetics in human lymphocytes exposed in vitro to new monophosphates of pyrimidine acyclonucleosides
Autorzy:
Ferenc, T
Rutkowski, M.
Bratkowska, W.
Hubner, H.
Draminski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2044452.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
statistical analysis
chromatid gap
chromosome number
enzyme activity
chromosome aberration
in vitro
chromosome gap
pyrimidine
phosphorylase
acyclonucleoside monophosphate
human lymphocyte
sister chromatid exchange
cell division
Opis:
Five newly synthesised monophosphates of two pyrimidine acyclonucleoside series, namely 1-N-[(2’-hydroxy)ethoxymethyl] and l-N-[(l’,3’-dihydroxy)- 2’-propoxymethyl] derivatives of 5- and 5,6-alkylated uracils were tested in vitro for chromosome aberrations and sister chromatid exchanges (SCE). Metaphase plates were obtained via microculture of human lymphocytes from heparinized peripheral blood. The compounds were tested in doses: 10, 20, 40, 80 and 150 µg per mL of culture. The tested compounds induced mainly chromatid gaps, less frequently chromosome gaps. A low number of mitoses with chromatid and chromosome breaks, acentric fragments, dicentric chromosomes and exchange figures were also observed. The tested compounds in doses: 40, 80 and 150 µg per mL, doubled or tripled the percentage of cells with chromatid gaps and chromosome gaps as compared to the control. The percentage o cells with aberrations (excluding gaps) induced by the tested compounds in all doses did not exceed 2%. The tested compounds induced a higher number of SCE per cell but less than double frequency as compared to the control. SCE frequencies and replication index (RI) values varied depending on the examined compounds. For the highest dose of the tested compounds (150 µg per mL) a significant decrease in RI values was observed for l-N-[(2’-hydroxy)ethoxymethyl]-5,6-tetramethyleneuracil monophosphate and for l-N-[(2’-hydroxy)ethoxymethyl]-5,6-dimethyluracil monophosphate. So far, the results have indicated potential clastogenicity of all the tested compounds except acycloguanosine monophosphate.
Źródło:
Journal of Applied Genetics; 1998, 39, 1; 113-127
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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