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239 related items for PubMed ID: 18713425

  • 1. Pseudohypericin and hyperforin in Hypericum perforatum from Northern Turkey: variation among populations, plant parts and phenological stages.
    Cirak C, Radusiene J, Janulis V, Ivanauskas L.
    J Integr Plant Biol; 2008 May; 50(5):575-80. PubMed ID: 18713425
    [Abstract] [Full Text] [Related]

  • 2. Variation of hyperforin in Hypericum montbretii during its phenological cycle.
    Cirak C, Radusiene J.
    Nat Prod Res; 2007 Nov; 21(13):1151-6. PubMed ID: 17987494
    [Abstract] [Full Text] [Related]

  • 3. Changes in the contents of main secondary metabolites in two Turkish Hypericum species during plant development.
    Cirak C, Radusiene J, Camas N, Caliskan O, Odabas MS.
    Pharm Biol; 2013 Mar; 51(3):391-9. PubMed ID: 23406360
    [Abstract] [Full Text] [Related]

  • 4. Simultaneous determination of the predominant hyperforins and hypericins in St. John's Wort (Hypericum perforatum L.) by liquid chromatography.
    Gray DE, Rottinghaus GE, Garrett HE, Pallardy SG, Gray DE, Rottinghaus GE, Garrett HE, Pallardy SG.
    J AOAC Int; 2000 Mar; 83(4):944-9. PubMed ID: 10995119
    [Abstract] [Full Text] [Related]

  • 5. Arbuscular mycorrhizal fungi altered the hypericin, pseudohypericin, and hyperforin content in flowers of Hypericum perforatum grown under contrasting P availability in a highly organic substrate.
    Lazzara S, Militello M, Carrubba A, Napoli E, Saia S.
    Mycorrhiza; 2017 May; 27(4):345-354. PubMed ID: 27999964
    [Abstract] [Full Text] [Related]

  • 6. Secondary metabolites of Hypericum leptophyllum Hochst., an endemic Turkish species.
    Camas N, Radusiene J, Stanius Z, Caliskan O, Cirak C.
    ScientificWorldJournal; 2012 May; 2012():501027. PubMed ID: 22649295
    [Abstract] [Full Text] [Related]

  • 7. Chemical constituents of Hypericum adenotrichum Spach, an endemic Turkish species.
    Cirak C, Ivanauskas L, Janulis V, Radusiene J.
    Nat Prod Res; 2009 May; 23(13):1189-95. PubMed ID: 19731137
    [Abstract] [Full Text] [Related]

  • 8. Variation of hypericins in Hypericum triquetrifolium Turra growing in different locations of Turkey during plant growth.
    Ayan AK, Cirak C.
    Nat Prod Res; 2008 Dec; 22(18):1597-604. PubMed ID: 19085414
    [Abstract] [Full Text] [Related]

  • 9. Simultaneous determination of total hypericin and hyperforin in St. John's wort extracts by HPLC with electrochemical detection.
    Rückert U, Likussar W, Michelitsch A.
    Phytochem Anal; 2007 Dec; 18(3):204-8. PubMed ID: 17500362
    [Abstract] [Full Text] [Related]

  • 10. Fast high-performance liquid chromatographic analysis of naphthodianthrones and phloroglucinols from Hypericum perforatum extracts.
    Tolonen A, Hohtola A, Jalonen J.
    Phytochem Anal; 2003 Dec; 14(5):306-9. PubMed ID: 14516003
    [Abstract] [Full Text] [Related]

  • 11. The production of hypericins and hyperforin by in vitro cultures of St. John's wort (Hypericum perforatum).
    Kirakosyan A, Sirvent TM, Gibson DM, Kaufman PB.
    Biotechnol Appl Biochem; 2004 Feb; 39(Pt 1):71-81. PubMed ID: 14521510
    [Abstract] [Full Text] [Related]

  • 12. An in vitro and hydroponic growing system for hypericin, pseudohypericin, and hyperforin production of St. John's wort (Hypericum perforatum CV new stem).
    Murch SJ, Rupasinghe HP, Saxena PK.
    Planta Med; 2002 Dec; 68(12):1108-12. PubMed ID: 12494339
    [Abstract] [Full Text] [Related]

  • 13. Effects of UV-B on secondary metabolites of St. John's Wort (Hypericum perforatum L.) grown in controlled environments.
    Brechner ML, Albright LD, Weston LA.
    Photochem Photobiol; 2011 Dec; 87(3):680-4. PubMed ID: 21275996
    [Abstract] [Full Text] [Related]

  • 14. Influence of the developmental stage on the (proto)-hypericin and (proto)pseudohypericin levels of Hypericum plants from Crete.
    Xenophontos M, Stavropoulos E, Avramakis E, Navakoudis E, Dörnemann D, Kotzabasis K.
    Planta Med; 2007 Oct; 73(12):1309-15. PubMed ID: 17893828
    [Abstract] [Full Text] [Related]

  • 15. [Hypericin and hyperforin: bioactive components of St. John's Wort (Hypericum perforatum). Their isolation, analysis and study of physiological effect].
    Vacek J, Klejdus B, Kubán V.
    Ceska Slov Farm; 2007 Apr; 56(2):62-6. PubMed ID: 17619301
    [Abstract] [Full Text] [Related]

  • 16. Investigation of pharmacokinetic data of hypericin, pseudohypericin, hyperforin and the flavonoids quercetin and isorhamnetin revealed from single and multiple oral dose studies with a hypericum extract containing tablet in healthy male volunteers.
    Schulz HU, Schürer M, Bässler D, Weiser D.
    Arzneimittelforschung; 2005 Apr; 55(10):561-8. PubMed ID: 16294501
    [Abstract] [Full Text] [Related]

  • 17. Optimization of Light Intensity, Temperature, and Nutrients to Enhance the Bioactive Content of Hyperforin and Rutin in St. John's Wort.
    Kuo CH, Chou YC, Liao KC, Shieh CJ, Deng TS.
    Molecules; 2020 Sep 16; 25(18):. PubMed ID: 32948004
    [Abstract] [Full Text] [Related]

  • 18. Secondary metabolites of Hypericum confertum and their possible chemotaxonomic significance.
    Cirak C, Radusiene J, Janulis V, Ivanauskas L.
    Nat Prod Commun; 2010 Jun 16; 5(6):897-8. PubMed ID: 20614818
    [Abstract] [Full Text] [Related]

  • 19. Effects of a methanolic extract and a hyperforin-enriched CO2 extract of St. John's Wort (Hypericum perforatum) on intracerebral field potentials in the freely moving rat (Tele-Stereo-EEG).
    Dimpfel W, Schober F, Mannel M.
    Pharmacopsychiatry; 1998 Jun 16; 31 Suppl 1():30-5. PubMed ID: 9684945
    [Abstract] [Full Text] [Related]

  • 20. Determining hyperforin and hypericin content in eight brands of St. John's wort.
    de los Reyes GC, Koda RT.
    Am J Health Syst Pharm; 2002 Mar 15; 59(6):545-7. PubMed ID: 11908248
    [No Abstract] [Full Text] [Related]

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