報告者:fellow 1 陳筱惠 指導醫師:方基存教授 Kidney Injury, Electrolyte and Acid-Base Abnormalities Associated With Use of Alternative Medicine Products April 2009 Dialysis & Transplantation Anthraquinones: laxatives Parsley (Petroselinum crispum) and juniper (duniperus communis): diuretics Licorice: sodium/water retention, potassium loss, hypertension Alfalfa (Medicago sativa), dandelion (Taraxaturn o~cinale), horsetail (Equisetum arvense), and nettle (Urtica dioica): contain potassium Medicinal Herb Use and the Renal Patient Jourual of Renal Nutritwn, Vol 8, No 1 (January), 1998: pp 40-42 Genus: Glycyrrhiza (Leguminosae) About 30 species: G. glabra, G. uralensis, G. inflata, G. aspera, G. Korshinskyi and G. eurycarpa, G. glabra Other common names: sweet root Description: Perennial herb with sweet tasting roots Native to the Mediterranean, the Mideast, Russia, and Asia Used as flavoring, sweetener, and medicinal herb Medicinal uses of licorice through the millennia: the good and plenty of it Molecular and Cellular Endocrinology, 78 (1991) 1-6 Used part: roots, rhizomes Known active constituents: Triterpenoid saponins: mostly glycyrrhizin, which is 50 times sweeter than sugar Flavonoids Isoflavones Coumarin derivatives Glycyrrhizin is hydrolyzed to glycyrrhetinic acid in the intestine by intestional bacteria. Glycyrrhizin: Peak serum concentration: less 4 hours Not detectable at 96 hours Glycyrrhetinic acid: Peak serum concentration: 24hour Still detectable in 72 hour Excretion: mostly by GI tract, 2% metabolite in urine Phytother. Res. 22, 709–724 (2008) Anti-inflammatory activities: Inhibit glucocorticoid metabolism and potentiates their effects Inhibit classical complement pathway activation Inhibit reactive oxygen species (ROS) generation by neutrophils COX-2 inhibition?? Antimicrobial and antiviral activities: Restore the effects of oxacillin and β- lactam antibiotic against MRSA E. coli, E. aerogenes, K. pneumoniae B. subtilis Helicobacter pylori Antioxidative activities: Preventing microsomal lipid peroxidation induced by Fe (III)-ADP/NADPH and licochalcone B, D Inhibited lipid peroxidation in rat liver Antioxidant toward LDL oxidation Hepatoprotective activities : Gastrointestinal activities: Antiulcer properties, as effectively as an H2 blocker Raising the local concentration of prostaglandins that promote mucous secretion and cell proliferation in the stomach Antitumor activities: Central nervous system activities: Inhibit serotonin reuptake, antidepressant activity in both the forced swim test (FST) and tail suspension test (TST) in mice Anticonvulsant effect in PTZ and lithiumpilocarpineinduced convulsion models Protective effects in cerebral ischemia-reperfusion injury in rats Cardiovascular activities: Antiplatelet aggregation effect Vasorelaxant effect Anti-angiogenic effect Estrogen-like activities, modulate vascular injury and atherogenesis Immunological activities: Inducer of type 2 antagonistic CD41 T cells in in vivo and in vitro studies Stimulate macrophage-derived NO production Up-regulate iNOS expression through nuclear factor kB (NF- kB) transactivation in murine macrophages Induce interferon activity and augment natural killer cell activity Inhibitory effects on TNF-alpha-induced IL-8 production in intestinal epithelial cells Anticomplementary activity and mitogenic activity Licorice toxicity: unknown prevalence, but not common In Denmark, average licorice consumption 2kg per person per year, no epidemics of licorice toxicity have been reported Almost all reported cases of licorice-induced problems from licorice containing liqueurs, candies, gum, laxatives, or chewing tobacco rather than from the use of licorice as medicine. In chinese medicine licorice is always used as part of mixture, and the synergistic effects of mixtures, as well as perhaps dose differences, may prevent problems. Licorice induced hypermineralocorticoidism NEJM Vol. 325 No.17 1223-1227 How to Diagnose and Treat a Licorice-induced Syndrome with Findings Similar to that of Primary Hyperaldosteronism Internal Medicine Vol. 43, No. 1 (January 2004) Pseudoaldosteronism due to the concurrent use of two herbal medicines containing glycyrrhizin: interaction of glycyrrhizin with angiotensionconverting enzyme inhibitor Clin Exp Nephrol (2006) 10:131–135 Pseudohyperaldosteronism, Liquorice, and Hypertension THE Journal of Clinical Hypertension VOL. 10 NO. 2 February 2008 The previous theory: the binding of its active components, glycyrrhizic acid, to mineralocorticoid receptos Argument: The affinity of glycyrrhetinic acid for mineralocorticoid receptor is 0.01% of that of aldosterone. Licorice or glycyrrhetinic acid dose not have mineralcorticoid effects in patients with Addison’s disease or adrenalectomized rats unless cortisone or hydrocortisone is administered concomitantly. Accepted mechanism now: inhibit 11Bhydroxysteroid dehydrogenase The clinical profile of liquorice-induced pseudohyperaldosteronism is similar to the syndrome of apparent mineralocorticoid excess. Subjects with history of chronic licorice ingestion were found that reninaldosterone axis was suppressed. Normal function resumed within 2~4 months after licorice was discontinued. The daily dose of glycyrrhizin that induces pseudoaldosteronism ranges from 20mg to 586mg. The reported durations of use have ranged from 6 days to 15 years. Artificial liquorice flavoring agents not containing glycyrrhizin would not influence mineralocorticoid metabolism. Disease development has sometimes been triggered by the concomitant use of glycyrrhizin with insulin, diuretics, or oral contraceptives. The mineralocorticoid effects of glycyrrhizin had been hidden by the concurrent use of an ACE inhibitor. Treatment of this syndrome: Cessation of licorice Potassium-sparing diuretic, such as spironolactone Low salt diet On encountering clinical manifestations suggesting mineralocorticoid excess Liddle syndrome Cushing syndrome Conn syndrome Apparent mineralocorticoid excess (AME), Deoxycorticosterone (DOC)-producing tumor Licorice-induced pseudoaldosteronism