Rootwork

Jiaogulan

Gynostemma pentaphyllum

CucurbitaceaeSouthern China (Guizhou, Sichuan, Yunnan provinces), Japan, Korea, Vietnam, India, and Southeast Asia

Description

overall appearance

Delicate, twining, herbaceous perennial vine reaching 3–5 m; slender stems; thin palmate leaves; known as 'Southern Ginseng' (Jiao Gu Lan = 'twisting blue plant') in China after the mountain village of Zhangjia Jie where centenarians reportedly consumed it daily as tea.

roots

Shallow fibrous root system with slender rhizomes; cream-colored; non-aromatic; saponin content lower than leaves

stem

Slender, angular, twining with tendrils arising from leaf axils; 1–3 mm diameter; green; glabrous to slightly hairy; annual dying back to rhizomes in cold climates

leaves

Palmately compound with 3, 5, or 7 leaflets (typically 5); leaflets elliptic to lanceolate, 3–8 cm long and 1–3 cm wide; serrate margins; thin; bright green; central leaflet largest; petioles 2–6 cm

flowers

Tiny, yellowish-green, 5-petaled flowers 2–3 mm; dioecious; arranged in elongate panicles 7–15 cm; inconspicuous

fruits/seeds

Small globose berry 5–9 mm in diameter; black when ripe; 1–2 seeds; each seed 3–4 mm

Active Compounds

Triterpenoid saponins (gypenosides): 100+ gypenosides identified; gypenoside XVII (identical to ginsenoside Rb1), gypenoside LXXV (identical to Rg3) — same as Panax ginsengGypenosides unique to G. pentaphyllum: gypentoside A, B; total saponin content 3–8% dry weightFlavonoids: rutin, quercetin, kaempferol, ombuoside, vitexinPolysaccharides: arabinogalactan (immunostimulant)Sterols: β-sitosterol, campesterolChlorophyll and carotenoids (in leaves)Amino acids: glutamic acid, alanine, glycine (complete profile)

Traditional Uses

  • Guizhou Province, China: consumed as daily tea by mountain populations with documented longevity and low rates of hypertension and cancer
  • TCM (relatively recent adoption): adaptogenic, anti-fatigue, cardiovascular tonic; used since Ming Dynasty (15th century) in Guizhou
  • Japanese traditional medicine (Amachazuru): fatigue remedy and longevity tea; widely sold as 'immortality herb' supplement
  • Traditional Vietnamese medicine: treatment for heart disease, liver conditions, and general debility
  • Chinese folk medicine: treatment for bronchitis, chronic cough, and respiratory weakness
  • Traditional treatment for tumors and cancer in mountainous regions of southern China
  • South Korean traditional medicine: adaptogen and cognitive tonic
  • Traditional use for anxiety and insomnia in Chinese and Korean herbalism

Modern Applications

  • Adaptogenic/anti-stress: gypenosides activate Nrf2 and reduce cortisol; comparable adaptogenic activity to Panax ginseng in animal stress models
  • AMPK activation: gypenoside XVII activates AMP-activated protein kinase (AMPK) — the primary mechanism for antidiabetic, anti-obesity, and longevity effects; Huang et al. (2012) documented this pathway
  • Antidiabetic: human RCT (Huyen et al., 2010) in type 2 diabetics showed significant reduction in HbA1c, fasting glucose, and insulin resistance after 12 weeks of gypenoside extract
  • Lipid-lowering: multiple RCTs showing gypenoside extract significantly reduces total cholesterol, LDL, and triglycerides while increasing HDL; meta-analysis confirms effect
  • Anticancer: gypenosides including Rb1 and Rg3 equivalents induce apoptosis and inhibit angiogenesis in multiple cancer cell lines
  • Hepatoprotection: reduces liver fat, fibrosis, and inflammation in NAFLD animal models; clinical pilot study in NAFLD showed improved liver enzyme profile
  • Anti-anxiety: gypenoside extract reduces anxiety in multiple rodent models via GABA-A receptor modulation; clinical pilot study showed significant reduction in GAD scores
  • Telomere and longevity effects: gypenosides activate SIRT1/AMPK pathway; extend lifespan in C. elegans and reduce oxidative senescence markers

⚠️ Safety Information

Contraindications

  • Autoimmune conditions: immunostimulant polysaccharides may exacerbate autoimmune flares; use with caution
  • Surgery: discontinue 2 weeks pre-operatively; antiplatelet and adaptogenic effects may complicate anesthesia
  • Pregnancy and lactation: insufficient safety data; gypenosides have structural similarity to steroidal hormones
  • Hormone-sensitive conditions: gypenoside structural similarity to ginsenosides; caution in estrogen-sensitive cancers

Side Effects

  • Nausea and increased bowel motility at high doses (>450 mg/day standardized extract)
  • Hypoglycemia when combined with antidiabetic medications
  • Dizziness or mild sedation in sensitive individuals due to GABA-ergic activity
  • Rare allergic reactions; mild rash reported in some individuals

Drug Interactions

  • Antidiabetics (insulin, metformin, thiazolidinediones): significant additive blood glucose lowering via AMPK activation; monitor closely
  • Anticoagulants/antiplatelets (warfarin, clopidogrel): antiplatelet activity demonstrated; monitor bleeding time
  • Immunosuppressants (cyclosporine): immunostimulant polysaccharides may reduce efficacy
  • Statins: additive lipid-lowering; generally beneficial but monitor for statin side effects at lower doses when combined

Parts Used

  • Aerial parts (leaves and stems — primary)
  • Whole plant powder
  • Dried leaves (tea)

Preparation Methods

Dried leaf tea: 2–3 g dried leaves steeped 5–10 min in 250 mL; 1–3 cups daily (traditional long-term use)

Standardized extract (gypenosides 20–80%): 100–450 mg/day

Gynostemma capsules (whole plant powder): 500–2,000 mg/day

Tincture (1:5, 40% ethanol): 3–5 mL twice daily

Standardized gypenoside extract tablets (as used in Chinese clinical trials): 80 mg gypenosides twice daily with meals

Cold-brew tea: 5–10 g leaves cold-steeped 4–8 hours; superior gypenoside extraction at lower temperature

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Disclaimer: For educational purposes only. This is not medical advice. Always consult a qualified healthcare provider.