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Family Asteracea
Sabuñgai
Gynura procumbens (Lour.) Merr.
LONGEVITY SPINACH

Bai bing ca

Scientific names Common names
Cacalia procumbens Lour. Gues (Neg.)
Cacalia reclinata Roxb. Kamañgi (Tag.)
Cacalia sarmentosa Lesch. ex Blume Purpuriket (Ilk.)
Crassocephalum baoulense (Hutcg. & Dalziel) Milne-Redh. Sabuñgai (Ig.)
Crassocephalum latifolium S. Moore Mollucan spinach (Engl.)
Gynura affinis Turcz. Longevity spinach (Engl.)
Gynura agusanensis Elmer Cholesterol spinach (Engl.)
Gynura baaoulensis Hutch. & Dalziel Leaves of Gods (Engl.)
Gynura buntingii S. Moore  
Gynura cavaleriei H. Lév  
Gynura cavaleriei Levl.  
Gynura clementis Merr.  
Gynura finlaysoniana DC.  
Gynura latifolia (S.Moore) Elmer  
Gynura lobbiana Turcz.  
Gynura piperi Merr.  
Gynura procumbens (Lour.) Merr.  
Gynura pubigera Bold.  
Gynura sarmentosa (Blume) DC.  
Gynura scabra Lour.  
Senecio baoulensis A.Chev.  
Senecio mindorensis Elm.  
Gynuraa procumbens (Lour.) Merr. is an accepted name. The Plant List

Other vernacular names
CAMBODIA: Chi angkam.
CHINESE: Man san qi cao, Lam fei yip, Ping wo ju san qi, Bai bing cao .
INDONESIA: Daun dewa, Sambung nyawa
MALAYSIA: Dewa raja, Akar sebiak, Kacham akar.
THAILAND: Paetumpung
VIETNAMESE: Kim That Tai. Cay Tieu Duong, Tiem Vinh

Botany
Sabuñgai is a twining vine, smooth except for the peduncles. Leaves are stalked (the uppermost ones stalkless), ovate-elliptic or lanceolate, 3.5 to 8 centimeters long, and 0.8 to 3.5 centimeters wide, with somewhat entire or toothed margins. Flowering heads are panicled, narrow, yellow, and 1 to 1.5 centimeters long. Involucral bracts are smooth and up to 6 millimeters long. Achenes are very small and smooth, with very close and slender ribs.

Distribution
- In thickets along streams, in old clearings, etc., at low and medium altitudes, ascending to 1,500 meters, from northern Luzon to Mindanao, in most islands and provinces.
- Also occurs in Thailand and Indo-China to Malaya.

Constituents
- Study identified abundant proteins from the leaves. Peroxidase was the abundant protein in the leaves. Other valuable proteins in the leaves were osmotin like protein I and thaumatin like protein I (TL) (see studies below) (4)
- An ethanolic extract yielded alkaloids and volatile oils.
- Nutritional analysis yielded moisture 7.08%, carbohydrate 0.0537 to 0.1968 µg glucose equivalent/100 g dry weight, protein 4.51 g/100 g dry weight, and lipid o.023 g/100 g dry weight. (see study below) (29)

Properties
- Leaves considered anti-hyperglycemic, anti-hyperlipidemic and anti-inflammatory.
- Studies have shown anti-inflammatory, antihypertensive, glucose-lowering, antioxidant, antiulcerogenic, wound healing, antiproliferative, chemopreventive properties.

Parts used
Whole plant, leaves, shoots.

Uses

Culinary
- In many Asian countries, leaves eaten fresh or cooked; added to salads or stand-alone salad; used for sauces, as flavoring.
Folkloric
- In Java, used for kidney troubles.
- In Malacca, decoction used for dysentery.
- In Thailand, used as topical inflammation, rheumatism, and viral ailments.
- Poultice used for rheumatic and general body pains.
- In some parts of Asia, used as abortifacient.
- In Malaysia, a folk remedy for diabetes and hyperlipidemia.

Studies
Anti-Inflammatory:
Study of ethanol extract showed anti-inflammatory activity. (1)
Antihypertensive: Study showed the oral administration of aqueous extract significantly lowered blood pressure in spontaneously hypertensive rats. Results suggest GPE may be useful for prevention and treatment of hypertension through increasing NO (nitric oxide) production in blood vessels. (2)
Glucose Lowering: Ethanolic extract of leaves significantly suppressed elevated serum glucose levels in diabetic rats. The extract did not significantly suppress glucose levels in normal rats. Results conclude the leaves of GP may be biguanide-like activity. (3)
Abundant Leaf Proteins / Peroxidase: Study found few abundant proteins from the leaves of GP; among these, peroxidase was found the most abundant of the extracted proteins. Results suggest a natural source for peroxidase for use in the cosmetic and skin care industry. The presence of TL protein in leaves indicate it may not be suitable as food in the raw state. However, raw eating of leaves is common in the Asian region. (see constituents above) (4)
Nutritive / Antioxidative Properties: Ethanolic Gynura extract exhibited the highest antioxidative properties in every assay. Nutritive evaluation suggests the extract is a good protein source and may have positive effects on free radical scavenging and iron chelating. (5)
Gynura procumbens Medical Toothpaste: A Gynura procumbens toothpaste invention consists of" gynura procumbens (Lour.) extract of 1-20%, glycerol of 20-55%, diglycol of 10-15%, abradant of 20-45%, carboxymethyl cellulose of 0.5-1.5%, sodium dodecyl sulfate of 0.5-2%, additive of 1-4%, essence of 1-2% and saccharin of 0.1-1%. (6)
Anti-Ulcerogenic: Study results suggest the ethanolic leaf extract of Gynura procumbens promotes ulcer protection as shown by significant reduction of ulcer area, histologic decreases in ulcer areas, with absence or reduction of edema and leucocyte infiltration of submucosal layer. (7)
Anti-Diabetic: / Increase Glucose Uptake: Study evaluating the water extract of G. procumbens in streptozotocin-induced diabetic rats showed a hypoglycemic effect by promoting glucose uptake by muscles. (8)
Anti-Diabetic / Increase Glucose Uptake and Insulin Potentiation:Study results suggest the antidiabetic effect may be mediated through the stimulation of glucose uptake and the potentiation of insulin action. (10)
Toxicological Evaluation: Administration of a methanol extract of G. procumbens did not produce mortality or significant changes in various parameters in both acute and sub-chronic toxicity studies.(9)
Wound Healing / Acute Toxicity Study: Acute toxicity study of leaf extract showed no mortality with 5g/kg dose. In a wound healing model in rats, wounds dressed with leaf extract showed significant enhancement and acceleration of wound healing. (12)
Antioxidant Effects: Study showed ROS (Reactive Oxygen Species) may be scavenged effectively by the antioxidant system of G. procumbens leaves. The ratio between chlorophyll and carotenoid was higher than in other green plants.
Hypoglycemic Effects / GSK3ß Phosphorylation: Study evaluated the hypoglycemic effects of G. procumbens and the involvement in the glycogen synthase kinase (GSK3), a key component of insulin biosignaling. Results showed the plant did not exhibit GSK3 inhibitory activity, and suggests the hypoglycemic actions of the fractions could be from direct or indirect effects on upstream insulin biosignaling pathway. (13)
Blood Sugar Reduction: Major flavonoid constituents were identified in the n-butanol fraction. A methanolic extract of leaves showed reduction of blood glucose in STZ-induced diabetic rats. Results were compared to glibenclamide as standard drug.
Antiproliferative Effects / DBMA-Induced Rat Liver: Study evaluated the antiproliferative effect of an ethanolic leaf extract on 7,12-dimethylbenz(a)antracene-induced male rat liver. Results showed significant antiproliferative activity, with histopathology showing no primary liver tumor on the DMBA group. (20)
Cardiovascular Effects: A water extract of G. procumbens showed promising cardiovascular effects. Significant vasodilation and negative chronotropic and ionotropic effects were observed with the water extract compared to the ethanolic extracts. Chemical analysis of the water extract yielded significant amounts of polyphenolic and flavonoid constituents. (16)
Antihyperglycemic / Leaf Extracts: Study evaluated leaf extracts for antidiabetic activity. Results showed significant lowering of fasting blood glucose in streptozotocin-induced diabetic rats. Study suggests extracts contain active principles that possess anti-hyperglycemic but no hypoglycemic effect. The antidiabetic action may be via a mechanism similar to metformin. (18)
Anticancer Proteins: An earlier study yielded plant defense proteins, peroxidase, thaumatin-like proteins and miraculin the the leaf of G. procumbens. Study investigated the bioactivity of the leaf extract proteins. An active protein fraction, SN-F11/12 inhibited the growth of a breast cancer cell line, MDA-MB-231. The proteins in the fraction can be a potential chemotherapeutic agent for breast cancer treatment. (19)
Antiherpetic: An ethanol extract of aerial parts of G. procumbens showed virucidal and antireplicative actions against herpes simplex HSV-1 and HSV-2. Several antiherpetic compounds were isolated from fractions: caffeoylquinic acid derivatives, phytosteryl glucosides, and glycoglycerolipids. Flavonoids probably imparted an anti-inflammatory effect. Lab evidence and reduction of infection supported the antiherpetic effect of G. procumbens. (21)
Suppression of Osteosarcoma Cell Proliferation and Metastasis In Vitro: Study showed an ethanolic extract is able to induce apoptosis and suppresses proliferation and metastasis in U2-OS cells via inhibition of the nuclear translocation of NF-kB. (22)
Vasorelaxant / Potassium Channel Openers and Prostacyclin: Study confirms the vasodilatory effects of G. procumbens through blocking of calcium channels. The vasodilatory effect may also be due to opening of potassium channels and stimulation of prostacyclin production. Putative compounds are probably flavonoids in nature. (23)
Chemopreventive / Colon and Breast Cancer: Study of an ethyl acetate fraction investigated for cytotoxic properties and selectivity against colon cancer and breast cancer cells showed selective effect against cancer cells and reveals potential as cancer chemopreventive agent. (24)
Antiherpetic: An ethanol extract of Gynura procumbens showed virucidal and antireplicative activities against herpes simplex virus (HSV-1 and HSV-2). Antiherpetic activity was attributed to caffeoylquinic acid derivatives, phytosteryl glucosides, and glycoglycerolipids. A double-blind randomized controlled clinical trial of the products was performed in patients with recurrent herpes labialis. The insignificant result was attributed to a low number of patients and insufficient concentration of plant extract. (25)
Decrease Blood Pressure / Inhibition of Calcium Channels: An intravenous butanolic fraction elicited significant and dose dependent decreases in mean arterial pressure. Results suggest the presence of putative hypotensive compounds that appear to inhibit calcium influx via receptor-operated and/or voltage-dependent calcium channels to cause vasodilation and a consequent decrease in blood pressure. (26)
Antioxidant / Inhibition of Drug Metabolizing Enzymes: Study investigated various extracts of G. procumbens for antioxidant capacity and CYP34A and CYP1A2 enzyme activities. Results showed the inhibition of CYP3A4 and CYP1A2 followed the rank order of total flavonoid content, where the higher the total flavonoid content the higher the inhibition of drug metabolizing enzymes. (27)
Antioxidant / Antitumor: Study evaluated the antioxidant activities of plant extracts of G. procumbens, A. aspera and P. tomentosum using the DPPH assay. G. procumbens showed the more potent antioxidant activity. Gynura procumbens also showed antitumor activity at a dose of 1000 ppm. (28)
Antioxidant / Nutritional Value: Nutrition analysis showed it to be a good protein source with positive effects on free radical scavenging and iron chelating. (see constituents above) (29)
Abundant Leaf Proteins / Peroxidase: Study identified few abundant proteins from the leaves of Gynura procumbens. Among the proteins, peroxidase was found to be the most abundant. As a natural source of peroxidase, G. procumbens has value in the cosmetic and skin care industry. (30)
Effect on Rat Atrial Contraction: Study investigated the effects of various extracts and fractions of leaves of G. procumbens on rat atrial contraction in vitro. Results showed positive inotropic activities and suggests a potential as alternative use against increased blood pressure in humans. (31)
• Antihyperglycemic / α-Glucosidase Inhibition: Study investigated the antidiabetic effect of G. procumbens water extract by regulation of activities of hepatic glucose-regulating enzymes. Compared to the antidiabetic drub acarbose,GWE exhibited high a-glucosidase inhibition activity (32.2% in 3mg/ml).The antihyperglycemic potency is thought to be mediated through activation of GK, PDH, and induction of protein expression of pACL, pGSK-3ß related indirectly or indirectly to glucose metabolism. (34)
• Effect on Sperm Quality and Testosterone Level: Study evaluated the effects of aqueous and ethanolic extracts of G. procumbens on sperm quality and testosterone level of male STZ-induced T1 diabetic rats. Results showed a dramatic increase in sperm count (206.89%) and motility as well as testosterone level (16.71%), along with decrease in fasting blood glucose (38.71%) and sperm mortality (5.62%). (35)
• Antioxidant / Cytotoxicity / Acute Oral Toxicity: A methanol extract showed better overall antioxidant activities using DPPH radical scavenging, metal chelating, and ß-carotene bleaching assays. An EA extract showed selective cytotoxicity against HT-29 and HCT 116 cells with IC values of 35.7 and 42.6 µg/mL. The methanol extract showed negligible level of toxicity when administered orally. Results suggest potential benefit in the prevention and treatment of cancer. (36)
• Antihyperglycemic / Toxicological Evaluation: Study evaluated acute and sub-chronic antihyperglycemic activity, safety margin evaluations and constituents of ethanol extract and fractions of G. procumbens in STZ-induced diabetic rats. Toxicity testing showed the extract is safe at the limit test dose of 2000 mg/kg, thus the oral lethal dose (LD50) exceeds 2000 mg/kg. Acceptable daily intake was determined at 700 mg/kg/day. An n-butanol fraction consistently lowered glucose levels with an effect that was dose dependent and closest to that of metformin. The antihyperglycemic effect corresponded to the high content of phenols and flavonoids. (37)
• Antimelanogenesis / Moisturizing Effect: Study of a G. procumbens extract suggested a whitening effect. When applied with high concentration on human epidermal keratinocyte (HaCaT), hyaluronic acid significantly increase. Results suggest GP contains many kinds of whitening ingredients and moisturizing compounds. (38)
• Immunomodulatory / Leaves: Study evaluated the effect and dose variations of GP extract on biological aspect of CD4+CD62L-, CD4+CD62L+, CD8+CD62L- and CD8+CD62L+ T cells. Results suggest the EA of GP has potential benefit on the immune system as an immunomodulator. (39)
• Anticarcinogenesis Effect: Study investigated the anticarcinogenesis effect of ethanol extract of leaves on 4 nitroquinoline 1-oxide (4NQO)-induced rat tongue carcinogenesis. Results showed the EE of GP could inhibit the progression of 4NQO-induced rat tongue carcinogenesis in the initiation phase. (40)
• Sensitization of Colon Cancer Cell Line / Synergism with 5-FU: Study evaluated of an ethyl acetate fraction showed sensitizing properties and cause cell cycle arrest and apoptosis on WiDr cells. Because of synergism properties, the FEG exhibited potential in combination with 5-FU but not with Cisplatin. (41)
• Reversal of Acute and Chronic Ethanol-Induced Liver Steatosis: Study evaluated the hepatoprotective potential of G. procumbens on acute and chronic ethanol-induced liver injuries. Results showed attenuation of acute ethanol induced serum ALT and hepatic lipid accumulation. Both n-butyl alcohol extract and 60% ethanol-eluted fraction inhibited chronic ethanol-iinduced hepatic lipid accumulation by modulating lipid metabolism-related regulators through MAPK/SREBP-1c-dependent and independent signaling pathway and ameliorated liver steatosis. (42)
• Profertility / Antidiabetic: Study evaluated the anti-diabetic and pro-fertility effect of G. procumbens on STZ-induced diabetic male rats. Results showed significant decrease in fasting blood glucose. There was significant increase in sperm quality parameters in the GP treated group with significant histological effects as evidenced by arrangement of cells in the germal cell layers. (43)
• Anti-Carcinogenic / Decrement of Cytochrome P450 and Increase of GSTµ Activity / Leaves: Gynura procumbens extract significantly decreased the cytochrome P450 activity (p<0.05) but significantly increase the GSTµ activity (p<0.05) Results showed ethanol extract of G.. procumbens leaf acts as blocking agent in carcinogenesis initiation phase which further inhibits progression towards malignancy. (44)
• Alleviation of Postprandial Hyperglycemia / Digestive Enzymes Inhibition: Study evaluated the inhibitory effect of G. procumbens extract against carbohydrate digesting enzymes and its ability to ameliorate postprandial hyperglycemia in STZ-induced diabetic mice. Results showed prominent α-glucosidase and α-amylase inhibitory effects. IC50s were 0.092±0.018 and 0.084±0.027 mg/mL, respectively. α-amylase inhibitory activity was more effective than positive control acarbose. (45)
• Improved Insulin Sensitivity / Hepatic Gluconeogenesis Suppression: GP extract significantly lowered glucose and glycosylated hemoglobin compared to diabetic control mice. Results showed increased insulin sensitivity, with significantly lower homeostatic index of insulin resistance. There was inhibition of gluconeogenesis with decreased expression of glucose-6-phosphatase and phosphoenolpyruvate carboxykinase in the liver. (46)

Buyers beware
• Ashitaba has been getting a lot of press, being touted as the new "miracle" herb.
However, a lot of potted "ashitaba" being sold locally from roadside herbal gardens and mall stalls, intentionally or unintentionally, is actually Sabungai rather than ashitaba (Angelica keiskei). (See Ashitaba)

Availability
Wild-crafted.

Updated July 2017 / February 2015

IMAGE SOURCE: File / Photo / :Starr 080608-7430 Unknown sp..jpg / Forest & Kim Starr / 8 June 2008/ Creative Commons Attribution / click on image to go to source page / Wikimedia Commons
OTHER IMAGE SOURCE: Illustration / Gynura procumbens (Lour.) Merr. [as Gynura sarmentosa (Blume) DC.] / Curtis's Botanical Magazine, vol. 118 [ser. 3, vol. 48]: t. 7244 (1892) [M. Smith] / PlantIllustrations.org
OTHER IMAGE SOURCE: Photo / Gynura procumbens / Ashitaba: Nature's Longevity Herg / click on photo to go to source page / Ashitaba Plant Blog Spot

Additional Sources and Suggested Readings
(1)
Antiinflammatory screening of the medicinal plant Gynura procumbens / Iskander MN, Song Y et al / Plant Foods for Human Nutrition. 57(3-4):233-244, 2002.
(2)
Antihypertensive Effects of Gynura procumbens Extract in Spontaneously Hypertensive Rats / Mi-Ja Kim, Hee Jae Lee et al / Journal of Medicinal Food. Winter 2006, 9(4): 587-590. doi:10.1089/jmf.2006.9.587.
(3)
Effects of an Ethanolic Extract of Gynura procumbens on Serum Glucose, Cholesterol and Triglyceride Levels in Normal and Streptozotocin-Induced Diabetic Rats / XF Zhang, BKH Tan /
Singapore Med J 2000; Vol 41(1):
(4)
THE IDENTIFICATION OF HIGH ABUNDANT PROTEINS IN THE LEAVES OF GYNURA PROCUMBENS / C S Hew, L H Gam / Biotechnol. & Biotechnol. eq. 24/2010/4 / DOi: 10.2478/v10133-010-0072-9
(5)
Evaluation of Nutritional Value and Antioxidative Properties of The Medicinal Plant Gynura procumbens Extract / D Puangpronpitag, S Chalchanadee et al /
Asian J. Plant Sci., 9: 146-151. / DOI: 10.3923/ajps.2010.146.151
(6)
Gynura procumbens medical toothpaste / Xie Ping /
(7)
Anti-ulcerogenic activity of Gynura procumbens leaf extract against experimentally-induced gastric lesions
in rats
/ A. A. Mahmood, Adbalbasit A et al / Journal of Medicinal Plants Research Vol. 4(8), pp. 685-691, 18 April, 2010
(8)
Antidiabetic Properties and Mechanism of Action of Gynura procumbens Water Extract in Streptozotocin-Induced Diabetic Rats / Zurina Hassan, Mun Fei Yam et al / Molecules 2010, 15, 9008-9023; doi:10.3390/molecules15129008
(9)
Toxicology evaluation of standardized methanol extract of Gynura procumbens / Rosidah, Mum Fei Yam et al /
Jour of Ethnopharmacology, Vol 123, No 2, 22 June 2009, Pp 244-249 / doi:10.1016/j.jep.2009.03.011
(10)
GLUCOSE UPTAKE :Stimulatory Activity of Gynura procumbens in 3T3- F442A adipocytes / Mohd Bohari, Siti Pauliena et al / Universiti Teknologi Malaysia Institutional Repository
(11)
Gynura procumbens (Lour.) Merr./ Chinese names / Catalogue of Life, China
(12)
Acute toxicity study and wound healing potential of Gynura procumbens leaf extract in rats / A. A. Zahra, F. A. Kadir, A. A. Mahmood, A. A. Al hadi, S. M. Suzy, S. Z. Sabri , I. I. Latif1 and K. A. Ketuly / Journal of Medicinal Plants Research Vol. 5(12), pp. 2551-2558, 18 June, 2011
(13)
Hypoglycemic Effects of Gynura procumbens Fractions on Streptozotocin-induced Diabetic Rats involved Phosphorylation of GSK3β (Ser-9) in Liver / CHONG CHING JUNE, LEE HUI WEN, HALIMAH ABDULLAH SANI, JALIFAH LATIP, JUALANG AZLAN GANSAU, LEE PING CHIN, NOOR EMBI & HASIDAH MOHD SIDEK* / Sains Malaysiana 41(8)(2012): 969–975
(14)
Evaluation of Phytochemical Composition and Antibacterial Property of Gynura procumbens Extract. / N. Kaewseejan, D. Puangpronpitag and M. Nakornriab, 2012 / Asian Journal of Plant Sciences, 11: 77-82.
(15)
Flavonoid Identification and Hypoglycaemic Studies of the Butanol Fraction from Gynura procumbens / G.A. Akowuah, A. Sadikun and A. Mariam / Pharmaceutical Biology, 2002, Vol. 40, No. 6 , Pages 405-410
(16)
STUDY OF CARDIOVASCULAR EFFECTS OF GYNURA PROCUMBENS LEAF EXTRACTS ON ISOLATED RAT THORACIC AORTA AND ATRIUMS / Navneet Kaur, Ammar Ehsan, Rabyah B. Ali, Mohd. Zaini Asmawi and Amirin Sadikun / International Journal of Pharmaceutical Sciences and Research
(17)
Common names / Chinhtruc Xuan Nghiem / Docs.Google
(18)
Hypoglycemic and anti-hyperglycemic study of Gynura procumbens leaf extracts / Khalid Algariri, Kuong Y Meng, and Norhyati Ismail / Asian Pacific Journal of Tropical Biomedicine, 2013 May, 3(5): 358-366
(19)
The Anti-Cancer Property of Proteins Extracted from Gynura procumbens (Lour.) Merr / Chaw-Sen Hew, Boon-Yin Khoo, Lat-Ham Gam / PLOSone / https://doi.org/10.1371/journal.pone.0068524
(20)
Antiproliferative effect of gynura procumbens (lour.) Merr. Leaves ethanolic extract on 7,12-dimethylbenz(a)antracene induced male rat liver / Fithriyatun Nisa, Adam Hermawan, Retno Murwanti, Edy Meiyanto* / Advanced Pharmaceutical Bulletin, 2012, 2(1), 99-106 / doi: 10.5681/apb.2012.014
(21)
Antiherpetic Effects of Gynura procumbens / Siripen Jarikasem, Somyot Charuwichitratana, Sontana Siritantikorn, Wasan Chantratita, Magdy Iskander, August Wilhelm Frahm, and Weena Jiratchariyakul / Evidence-Based Complementary and Alternative Medicine, Volume 2013 (2013) / http://dx.doi.org/10.1155/2013/394865
(22)
Gynura procumbens ethanolic extract suppresses osteosarcoma cell proliferation and metastasis in vitro / Heng Wang, Ji Wen Zhou, Da Hua Fu, Yang Zhou, Wen Zhao Cheng, Zhi-Li Liu / Oncology Letters / DOI: 10.3892/ol.2013.1315
(23)
Potassium channel openers and prostacyclin play a crucial role in mediating the vasorelaxant activity of Gynura procumbens / Hien-Kun Ng, Ting-Fung Poh, Sau-Kuen Lam, See-Ziau Hoe / BMC Complementary and Alternative Medicine, July 2013, 13:188
(24)
Selectivity of Ethyl Acetate Fraction of Gynura Procumbens on Colon Cancer and Breast Cancer
/ Nunuk Aries Nurulita *, Edy Meiyanto, Sugiyanto / Indonesian Journal of Cancer Chemoprevention, 2011, 2(3): 274-280
(25)
Antiherpetic Effects of Gynura procumbens / Siripen Jarikasem, Somyot Charuwichitratana, Sontana Siritantikorn, Wasan Chantratita, Magdy Iskander, August Wilhelm Frahm, and Weena Jiratchariyakul / Evidence-Based Complementary and Alternative Medicine, Volume 2013 (2013) / http://dx.doi.org/10.1155/2013/394865
(26)
Gynura procumbens Merr. decreases blood pressure in rats by vasodilatation via inhibition of calcium channels / See-Ziau HoeI; Chen-Neng LeeII; Shiueh-Lian MokII; Mohd Yusoff KamaruddinIII; Sau-Kuen LamI / Clinics vol.66 no.1 São Paulo 2011 / http://dx.doi.org/10.1590/S1807-59322011000100025
(27)
ANTIOXIDANT PROPERTIES OF GYNURA PROCUMBENS EXTRACTS AND THEIR INHIBITORY EFFECTS ON TWO MAJOR HUMAN RECOMBINANT CYTOCHROME P450S USING A HIGH THROUGHPUT LUMINESCENCE ASSAY / ATIQAH AFANDI, HALIMHILMI ZULKIFFLI M, AMIRIN SADIKUN, SABARIAH ISMAIL / Asian J Pharm Clin Res, Vol 7, Issue 5, 2014, 36-41
(28)
Study on Antioxidant and Antitumor Activities of Some Herbal Extracts / S.S. Maw, M. M. Mon, Z .K .Oo / World Academy of Science, Engineering and Technology, Vol 5, 2011
(29)
Evaluation of Nutritional Value and Antioxidative Properties of The Medicinal Plant Gynura procumbens Extract / Luerang A, Thammasam K, Sittiwet C, Naowaratwattana W, Chaichanadee S, Puangpronpitag D, Kaewseejan N / Journal of Plant Sciences 03/2010 / DOI: 10.3923/ajps.2010.146.151
(30)
THE IDENTIFICATION OF HIGH ABUNDANT PROTEINS IN THE LEAVES OF GYNURA PROCUMBENS
/ C.-S. hew and L. H. Gam / Biotechnol. & Biotechnol. eq. 24/2010/4 / DOi: 10.2478/v10133-010-0072-9
(31)
Effects of Extracts and Fractions of Gynura procumbens on Rat Atrial Contraction / Omar Saad Saleh Abrika, Mun Fei Yam, Mohd. Zaini Asmawi, Amirin Sadikun, Hamady Dieng, Elssanousi Ali Hussain / Journal of Acupuncture and Meridian Studies, Volume 6, Issue 4, August 2013, Pages 199–207 / doi:10.1016/j.jams.2013.01.020
(32)
Gynura procumbens / Synonyms / The Plant List
(33)
Gynura procumbens
: An Overview of the Biological Activities / Hui-Li Tan, Kok-Gan Chan, Priya Pusparajah, Learn-Han Lee, and Bev-Hing Goh / Front Pharmacol. 2016; 7: 52.  / doi: 10.3389/fphar.2016.00052
(34)
Effect of Gynura procumbens Water Extract on Enzymes Activities Related with Glucose Metabolism in HepG2 Cell / Dae Jung Kim, Yun Hwan Kang, Tae Woo Kim, Koung Kon Kim, Myeon Choe / The FASEB Journal, Vol 29, No 1 Supplement 730.5, April 2015
(35)
Effects of Gynura procumbens on Sperm Quality and Testosterone Level in Streptozotocin-induced Type 1 Diabetic Rats / Pusparanee H*, Lee H W, Halimah A S, Mahanem M N / International Journal of Pharmacognosy and Phytochemical Research 2016; 8(1); 22-30
(36)
Evaluation of Antioxidant Properties, Cytotoxicity and Acute Oral Toxicity of Gynura procumbens (Compositae) / WUEN YEW TEOH, NORHANOM ABDUL WAHAB, JAIME STELLA MOSES RICHARDSON & KAE SHIN SIM* / Sains Malaysiana 45(2)(2016): 229–235
(37)
Antihyperglycaemic and Toxicological Evaluations of Extract and Fractions of Gynura procumbens Leaves / Algariri, Khalid, Atangwho, Item Justin, Meng, Kuong Yow, Asmawi, Mohd Zaini, Sadikun, Amiri,
Murugaiyah, Vikneswaran / Tropical life sciences research,  Vol. 25, No. 1 (2014), p. 75-93
(38)
Evaluations of anti-melanogenesis activity and the moisturizing effect of Gynura Procumbens / Hye-Jin Kwon, Jung-Ki Min, Hyeong-Ju Jeon / Kor J Aesthet Cosmetol 2015;13(5): 637-644.
(39)
Immunomodulator Testing on Ethanol Extract of Gynura procumbens Leaves to Mus musculus Adaptive Immune System: in Vitro Study / Dinia Rizqi Dwijayanti, Muhaimin Rifa'i / The Journal of Experimental Life Science / DOI: http://dx.doi.org/10.21776/ub.jels.2014.004.01.02
(40)
ANTICARCINOGENESIS EFFECT OF GYNURA PROCUMBENS (LOUR) MERR ON TONGUE CARCINOGENESIS IN 4NQO-INDUCED RAT / D. Agustina, Wasito Wasito, S.M. Haryana, A. Supartinah/ Dental Journal Majalah Kedokteran Gigi, Vol 39, No 3 (2006) /
DOI: http://dx.doi.org/10.20473/j.djmkg.v39.i3.p126-132
(41)
THE ETHYL ACETATE FRACTION OF GYNURA PROCUMBENS SENSITIZES WIDR COLON CANCER CELL LINE AGAINST 5-FLUOROURACIL BUT SHOWS ANTAGONISM WITH CISPLATIN / Nunuk Aries Nurulita, Edy Meiyanto, Sugiyanto Sugiyanto, Eishou Matsuda, Masashi Kawaichi / International Journal of Phytomedicine, Vol 3, No 3 (2011)
(42)
Gynura procumbens Reverses Acute and Chronic Ethanol-Induced Liver Steatosis through MAPK/SREBP-1c-Dependent and -Independent Pathways / Xiao-Jun Li, Yun-Mei Mu, Ting-Ting Li, Yan-Ling Yang, Mei-Tuo Zhang, Yu-Sang Li, Wei Kevin Zhang, He-Bin Tang, and Hong-Cai Shang / J. Agric. Food Chem., 2015, 63 (38), pp 8460–8471c / DOI10.1021/acs.jafc.5b03504
(43)
Profertility and antidiabetic properties of Gynura procumbens on streptozotocin induced male rats / K. Khaidatui Akmar and M N Mahanem / AIP Conference Proceedings, Volume 1784, Issue 1 /  10.1063/1.4966737
(44)
Anti-carcinogenic activity of Gynura procumbens Extract through Cytochrome P450 and Glutathione S-transferase / Abdul Ghofur*, Iwan Syahrial Hamid, Dwi Listyorini / International Journal of PharmTech Research: IJPRIF, Vol.8, No.1, pp 24-29, 2015
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Gynura procumbens Extract Alleviates Postprandial Hyperglycemia in Diabetic Mice / Sung-In Choi, Mi Hwa Park, and Ji-Sook Han / Prev. Nutr. Food Sci. 2016;21(3):181-186 / http://dx.doi.org/10.3746/pnf.2016.21.3.181
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Gynura procumbens extract improves insulin sensitivity and suppresses hepatic gluconeogenesis in C57BL/KsJ-db/db mice / Sung-In Choi, Hyun-Ah Lee, and Ji-Sook Han / Nutr Res Pract. 2016 Oct;10(5):507-515. / https://doi.org/10.4162/nrp.2016.10.5.507 

 

 

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