1 / 22

St. John’s Wort

St. John’s Wort. Rachael Krob, Melissa Morrison & Katie Wooten. St. John’s Wort. Hypericum perforatum from the family Hypericaceae genus Hypericum 400 species worldwide Common Name: Goatweed Klamath Weed Amber Touch-and-Heal Blood of Christ Hardhay Guttiferae Tipton weed.

espen
Download Presentation

St. John’s Wort

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. St. John’s Wort Rachael Krob, Melissa Morrison & Katie Wooten

  2. St. John’s Wort • Hypericum perforatum from the family Hypericaceae • genus Hypericum • 400 species worldwide • Common Name: Goatweed Klamath Weed Amber Touch-and-Heal Blood of Christ Hardhay Guttiferae Tipton weed

  3. Botanical Description • SJW is an aromatic perennial herb, usually growing between 1-3 feet -small oblong leaves dotted with glandular trichomes containing essential oils -flowers are yellow with an abundance of bushy stamens - 5 petals with black dots on the periphery • Native to Europe, Asia and parts of Africa • Widespread in the U.S. and can be found in sunny places such as fields, meadows, and roadsides

  4. Ethnobotany -What’s in a name? • “wort”- English word for plant • “perforatum”- Latin word for hole • Legend of SJW • Origin of name dates back to the Middle Ages -believed the red resin was blood from the beheaded St. John the Baptist -flowers have brightest appearance on June 24th, John the Baptist’s birthday

  5. Ethnobotany • Gaelic tradition • Food flavoring • Crop blessings • Soaked plant in olive oil until “blood” was released • Red oil used to bless crops • Pre-Christian Religious practices • Protect from evil spirits and banish witches • Sleeping with plant provided blessings • “herba demonis fuga”: herb that chases away the devil

  6. Historical Usage • Used by various countries to treat: • Depression • Kidney disorders • Wound treatment • Antibacterial • Anti-viral (AIDS) • GI disorders • Diuretic • Night terrors • Cancer

  7. Historical Uses • Many early herbalist/physicians recommended SJW • Hippocrates, Gerard, Pliny the Elder, Dioscorides • Medicinal usage well document with 1st written record dating back to 1st century A.D. • Pliny the Elder • Dioscorides recommended SJW in his medical text for the treatment of sciatica and burns • First suggested by Paracelsus to treat mental illnesses • Work led to centuries of research in this area • 1630: Agelo Sala mentioned SJW’s excellent reputation for treating “illnesses of the imagination, melancholia, and anxiety”

  8. Historical Usage • SJW continued to spread and was eventually introduced to the American Indians • Used to treat tuberculosis and other breathing conditions • Today, SJW is best known for anti-depressive activities, but research continues in many areas, especially cancer and AIDS • Currently, SJW is listed in national pharmacopoeias of France, Poland, Czechoslovakia, Russia, Germany and Romania

  9. Current Medical Uses • Depression • Cancer • HIV/AIDS ***(Further research and trials is needed to confirm effectiveness) • Burns, cuts, and herpes (painful blisters of genital herpes).

  10. Methods of Use • Capsules • Tinctures • Teas (powder) • Depremin and Depesin : contains 0.5 mg Hypericin • Natrol • Kira or Jarsin 300

  11. Depression • In any given 1-year period, 9.5 percent of the population, or about 18.8 million American adults, suffer from a depressive illness (Robins) • “In Germany, it is prescribed twenty times more often than popular pharmaceutical drugs Zoloft and Prozac” • Effectiveness of St John's Wort. in Major Depression (Shelton et al. 1978-1986) • St.John’s wort for depression-an overview and meta-analysis of randomised clinical trials (Linde et al. 253-258)

  12. Cancer • Compounds from St.John’s Wort have anticancer properties • St.John’s Wort More Implications for Cancer Patients(Mansky et al. 1187-1188) • Anti-cancer Activities of Hypericin in the Dark(Blank et al. 120-125) • Antivascular Tumor Eradication by Hypericin-mediated Photodynamic Therapy(Chen et al. 509-513)

  13. HIV/AIDS • Hypericin seems to interfere with the • reproduction of retroviruses • Further research is needed • P27SJ, a novel protein in St John's Wort, that suppresses expression of HIV-1 genome (Sarkissian et al. 288-295)

  14. Side Effects • Anxiety, dry mouth dizziness, gastrointestinal symptoms, fatigue, headache, or sexual dysfunction. • Research shows that St. John’s Wort interacts with some drugs. • Indinavir, Irinotecan, Cyclosporine, Digoxin, Warfarin, Birth control pills, and Antidepressants.

  15. Compounds • SJW contains naphtodiantrons, flavonoids, phloroglucinols, phenolic acids, and essential oils • The active compounds are: • Hypericin, pseudohypericin (naphtodiantrons) • Cancer • Hyperforin (phloroglucinol) • Used for depression

  16. Compound Structures

  17. Mode of Action - Depression • Hyperforin – major component • Inhibits the 3H-GABA transporter GAT1 and the 3H-L-glutamate transporter EAAC1 • Monensin, a Na+ ionophore, inhibits reuptake of these, serotonin, and dopamine • Hyperforin does not act on this channel, but it appears to act on a sodium conductive pathway • 2003 study – upregulates serotonin 5-HT(2) receptors in mice (Wonnemann, 2000) (Butterweck, 2003)

  18. Mode of Action - Cancer • Study by F. Pajonk, 2005 • Hypericin inhibits NF-κB, a major transcription factor influencing apoptosis • Leads to premature apoptosis • Study by B. Chen, 2002 • Photodynamic therapy and hypericin • Destroys vascular cells in tumors • Has potential for use in solid tumors

  19. Mode of Action – HIV/AIDS • Protein from SJW - p27SJ • Binds to C/EBPβ – inhibits its interaction with DNA • p27SJ decreases level of viral replication in HIV infected cells (Darbinian-Sarkissian , 2006)

  20. Contraindications • Hyperforin • May activate pregnane X receptor • PXR induces CYP3A4 transcription • Results in quicker metabolism of certain xenobiotics (Moore, 2000)

  21. Work Cited Blank, Michael, Mathilda Mandel, Sadick Hazan, and Yona Keisari. "ANTI-cancer Activities of Hypercin in the Dark." Photochemistry and Photobiology May 2001: 120-125. Chen, Bin, Tania Roskams, and Peter A.M. de Witte. "Antivascular Tumor eradication by Hypericin-mediated Photodynamic Therapy." Photochemistry and Photobiology 76.5 (2002): 509-513. Linde, Klaus, Gilbert Ramirez, Cynthia Mulrow, and Dieter Melchart. "St. John's wort for depression- an overview and meta-analysis of randomised clinical trials." BMJ 313 (1996): 253-258. Mansky, Patrick, and Stephen Straus. "St.John's Wort: More Implications for Cancer Patients." Journal of the National Cancer Institute Aug 2002: 1187-1188. Shelton, Richard, Martin Keller, Alan Gelenberg, and David Dunner. "Effectiveness of St John's Wort in Major Depression." JAMA 285.15 (2001): 1978-1986. "St. John's Wort." July 2005. National Center for Complementary and Alternative Medicine. 10 Apr. 2006 Robins LN, Regier DA (Eds). Psychiatric Disorders in America, The Epidemiologic Catchment Area Study, 1990; New York: The Free Press. Rosenthal, Norman. St.John's Wort: the herbal way to feeling good. New York: HarperCollins, 1998. Sarkissian, N Darbinian, A Darbinyan, J Otte, and S Radhakrishnan. "P27SJ, a novel protein in St John's Wort, that suppresses expression of HIV-1 genome." Gene Therapy 13 (2005): 288-295.

More Related