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    Yemama Apothecary

    Bencao Gangmu Reference Library

    Glycemic-Regulating, Uric Acid-Purging & Hepato-Protective Sovereign (清热泻火 / 解毒利湿降血糖降尿酸清肝明目通便消积 — 东南亚降糖降酸第一南非叶 / 传统苦叶药王 / 菊科清热苦味圣草)

    南非叶 / 扁桃斑鸠菊 / 苦叶树 / 降糖草 / 巴西国宝草 / 斑鸠菊 — Vernonia amygdalina Delile (syn. Gymnanthemum amygdalinum)

    Pinyin: Nánfēiyè / Biǎntáo Bānjiūjú / Kǔyèshù · Malay: Daun Afrika / Pokok Afrika / Daun Pahit / South African Leaf · Family: Asteraceae (菊科 / 斑鸠菊族)

    Botanical Illustration

    Energetics

    Cold (寒 / 苦寒)

    Flavor

    Overwhelmingly, purely bitter, astringent, with a sweet lingering aftertaste (大苦、极苦、微涩、大寒、回甘)

    Meridians

    Liver (肝), Stomach (胃), Large Intestine (大肠), Kidney (肾)

    Traditional Edict

    Bitter Leaf / South African Leaf (Daun Afrika / Nan Fei Ye / Ewuro). Pure clean bitterness resolving into sweet aftertaste. Undisputed King of Bitter Metabolic Botanicals: activates AMPK to lower diabetic blood sugar, competitively inhibits xanthine oxidase to clear gouty uric acid, clears fatty liver.

    Cautions & Contraindications

    • Do not consume mega-doses (>10 leaves daily for extended periods; take in 3-week cycles). CONTRAINDICATED in active pregnancy (uterine-stimulating dynamics). Safe during lactation.

    Clinical Applications

    • Type 2 Diabetes mellitus (activating AMPK and upregulating skeletal GLUT4 glucose disposal), hyperuricemic gouty arthritis (xanthine oxidase inhibition), non-alcoholic fatty liver disease (NAFLD), and hypertension.

    Quality Markers

    Vernodalin, Vernolepin (Sesquiterpene Lactones) >= 1.50% & Luteolin-7-O-glucoside >= 3.00% (HPLC MHM standard)

    Mechanism & Phytochemistry

    1. Vernodalin and vernolepin activate AMPK, driving GLUT4 translocation to lower glucose. 2. Luteolin-7-glucoside competitively blocks xanthine oxidase (IC50=5.2 ug/mL) to lower uric acid. 3. SREBP-1c downregulation.

    Preparation & Dosage

    THE SOVEREIGN DAUN AFRIKA GLYCEMIC & URIC ACID TEA: 3 to 5 fresh leaves (or 5-10 g dried shredded leaves) steeped with Misai Kucing (15 g) in 400 mL boiling water for 12 min; taken warm 1-2x daily after meals. Fresh leaf chewing: 1-2 leaves in morning.

    Appended Prescriptions

    • 1. The Sovereign Nanyang Glycemic & Uric Acid Harmony Triad with Orthosiphon (Misai Kucing) and Sida rhombifolia (Sidaguri). 2. Hepatic Steatosis Draught with Phyllanthus niruri.

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    Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only