Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
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I-Pos-2 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 23<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
ANTIGENOTOKSIÈNI EFEKAT TERPENA IZ ALFIJE<br />
T. Beriæ-Bjedov, J. Kneeviæ-Vukèeviæ, B. Vukoviæ-Gaèiæ, G. Joksiæ 1 ,<br />
D. Mitiæ-Æulafiæ, B. Nikoliæ, J. Stanojeviæ, S. Stankoviæ, O. Stajkoviæ i D. Simiæ<br />
Katedra za mikrobiologiju, Biološki fakultet, Univerzitet u Beogradu, Beograd<br />
1<br />
Institut za nuklearne nauke «Vinèa», Beograd<br />
Istraivanja su pokazala da aktivne supstance lekovitih i aromatiènih biljaka poseduju<br />
inhibitorni ili modulatorni efekat na genotoksiène agense. Cilj rada je detekcija<br />
antigenotoksiènog efekta terpena iz etarskog ulja alfije i izuèavanje mehanizama<br />
reparacije DNK koji su ukljuèeni, pomoæu prokariotskih i eukariotskih model sistema.<br />
Korišæena je baterija testova na E. coli K12 kojom se prati efekat na UV-indukovanu<br />
mutagenezu u reparaciono sposobnom, i eksciziono defektnom soju; spontane mutacije;<br />
SOS indukcija i intrahromozomalna rekombinacija. Kao dodatak, uraðen je mikronukleus<br />
test na humanim limfocitima ozraèenim zracima.<br />
Etarsko ulja alfije ima znatno manji efekat na smanjenje broja UV-indukovanih mutanata<br />
u uvrA - soju, nego u eksciziono sposobnom soju. Takav efekat je naðen i kod svih testiranih<br />
monoterpena iz njegovog sastava (tujon, 1,8-cineol i kamfor). U mutator mutS soju,<br />
nije uoèen znaèajan efekat na broj spontanih mutanata. tujon inhibira UV-indukovani<br />
SOS odgovor. Etarsko ulje alfije, 1,8-cineol i kamfor blago stimulišu intrahromozomalnu<br />
rekombinaciju u ozraèenom recA + soju, dok tujon nema znaèajnog efekta.<br />
Mikronukleus test je pokazao da etarsko ulje alfije ima slab radioprotektivni efekat.<br />
Rezultati dobijeni u ovom istraivanju, kao i podaci o antimutagenoj i antikancerogenoj<br />
aktivnosti monoterpena, ohrabruju dalja istraivanja etarskog ulja alfije kao<br />
potencijalnog agensa za prevenciju kancera.<br />
ANTIGENOTOXIC EFFECT OF TERPENOIDS FROM SAGE<br />
It has been shown that active substances from medicinal and aromatic plants possess inhibiting<br />
or modulating effect on environmental genotoxic agenta. This work is designed<br />
to detect antigenotoxic effects of terpenes from essential oil of sage, and to study the<br />
DNA repair mechanisms involved, using pro- and eukaryotic model systems.<br />
The battery of tests on E. coli K12 measuring UV-induced mutagenesis in excision repair<br />
proficient and deficient strains, spontaneous mutations, SOS induction and intrachromosomal<br />
recombination was used. In addition, micronucleus test was performed in -irradiated<br />
human limphocytes.<br />
Essential oil of sage was significantly less effective in inhibition of UV-induced mutations in<br />
uvrA - strain than in excision repair proficient strain. Similar effect is observed with all tested<br />
monoterpenes from essential oil ( thujone, 1,8-cineole and camphor). No significant effect<br />
on spontaneous mutagenesis was found in mutator mutS strain. thujone inhibit UV-induced<br />
SOS induction. Essential oil of sage, cineole and camphor mildly stimulate intrachromosomal recombination<br />
in UV-irradiated recA + strain, while thujone has no significant effect. Essential<br />
oil of sage exhibits mild radioprotective effect in micronucleus test.<br />
Our results, as well as the data on antimutagenic and anticarcinogenic activity of<br />
monoterpenes, encourage further investigation of essential oil of sage for potential use as<br />
cancer preventing agent.