Stimulation of the production of hypericins by mannan in Hypericum perforatum shoot cultures

…, H Hayashi, K Inoue, A Charchoglyan, H Vardapetyan - Phytochemistry, 2000 - Elsevier
… Our results also indicate that production of hypericins by H. perforatum shoot organ cultures
can be modified by elicitors such as mannan. This is the first report showing the stimulatory …

[HTML][HTML] Effects of various heavy metal nanoparticles on Enterococcus hirae and Escherichia coli growth and proton-coupled membrane transport

…, V Gevorkyan, M Ananyan, H Vardapetyan… - Journal of …, 2015 - Springer
… F O F 1 -ATPase activity and H + -coupled transport was changed either (E. coli were less
susceptible to nanoparticles compared to E. hirae). Ag nanoparticles increased H + and K + …

Differential accumulation of hyperforin and secohyperforin in Hypericum perforatum tissue cultures

…, Z Boubakir, TAM Gulder, TM Kutchan, H Vardapetyan… - Phytochemistry, 2007 - Elsevier
… In addition, the effect of phytohormones and elicitors on the ratio of hyperforin to secohyperforin
in H. perforatum shoot cultures was studied. Finally, we propose a new branch point in …

Effect of Laurus nobilis extract on the functioning of liver against CCl4 induced toxicity.

…, S Tiratsuyan, S Kazaryan, H Vardapetyan - 2015 - cabidigitallibrary.org
In present study effect of laurel leaf extract (Laurus nobilis) on biochemical parameters and
histo-morphology of rat liver induced by toxic damage of CCl 4 was studied. Introduction of …

Regulation of isoflavone production in hydroponically grown Pueraria montana (kudzu) by cork pieces, XAD-4, and methyl jasmonate

…, SC Chang, S Warber, S Bolling, H Vardapetyan - Plant cell reports, 2006 - Springer
… these pieces with chloroform for 4 h at 70C. The extraction … several times (each extraction for
4 h at 70C) until a colorless … distilled water (three times for 8 h at 70C) and autoclaved at 121…

[HTML][HTML] Interaction between hypericin and hemoglobin

HR Vardapetyan, AS Martirosyan, SG Tiratsuyan… - … of Photochemistry and …, 2010 - Elsevier
… treatments (1 h irradiation, 1 h incubation and 1 h irradiation after preliminary 1 h incubation).
… Disc-electrophoresis was conducted about 3 h with electric field power of 4 mA per tube (…

Effect of Various Elicitors on Lignan Biosynthesis in Callus Cultures of Linum austriacum

HR Vardapetyan, AB Kirakosyan… - Russian journal of plant …, 2003 - Springer
VARDAPETYAN et al. bated for 1 h in a water bath at 35C, then 12 ml of ethanol was
added to promote lignan solubilization, and the mixture was incubated for 10 min at 70C in an …

[HTML][HTML] Interaction of N-3-oxododecanoyl homoserine lactone with transcriptional regulator LasR of Pseudomonas aeruginosa: Insights from molecular …

…, L Hunanyan, S Tiratsuyan, H Vardapetyan - …, 2019 - f1000research.com
Background: In 2017, the World Health Organization announced a list of the most dangerous
superbugs. Among them is Pseudomonas aeruginosa, an opportunistic human pathogen …

[PDF][PDF] Elucidation of DPPH antiradical and photodynamic activities of Hypericum perforatum extracts

HR Vardapetyan, SG Tiratsuyan… - Հայաստանի …, 2012 - 93.187.165.86
… The results of this study have revealed the antioxidant potential of H. perforatum aqueous …
The calculated IC50 values indicate that the antioxidant activity of ethanolic extract of H. …

Phytochemical composition and biological activity of Laurus nobilis L. leaves collected from two regions of south Caucasus.

H Vardapetyan, S Tiratsuyan… - Journal of …, 2013 - cabdirect.org
The ethanolic extracts of Laurus nobilis L. collected from Tavush region of Armenia (L. nobilis
A.) and Zugdidi region of Georgia (L. nobilis G.) were analyzed by gas chromatography …