I thought I'd create a dedicated thread for examining and discussing the merits of Jiaogulan.
Gynostemma pentaphyllum, also called jiaogulan (Chinese: 绞股蓝; pinyin: jiǎogǔlán, literally "twisting-vine-orchid") is an herbaceous vine of the family Cucurbitaceae (cucumber or gourd family) indigenous to the southern reaches of China, southern Korea and Japan. Jiaogulan is best known as an herbal medicine reputed to have powerful antioxidant and adaptogenic effects that increase longevity.
The plant is best known for its use as an herbal medicine in traditional Chinese medicine. A botany book by Wu Qi-Jun from 1848 Zhi Wu Ming Shi Tu Kao Chang Bian discusses a few medicinal uses and seems to be the earliest known documentation of the herb. Jiaogulan had been cited previously as a survival food in Zu Xio's 1406 book Materia Medica for Famine. Until recently it was a locally known herb used primarily in regions of southern China. It is described by the local inhabitants as the immortality herb, because people within Guizhou Province, where jiaogulan tea is drunk regularly, are said have a history of living to a very old age.[1][2]
At the most minimal level, Jiaogulan can be considered nontoxic in accordance with the the alleged constant consumption in conjuction with the greater lifespan. The argument however is towards its use as a reputed longevity herb through antioxidant, adaptogenic, and immunomodulating methods.
We shall examine further evidence detailing its effects:
IMMUNOMODULATORY EFFECTS OF GYNOSTEMMA PENTAPHYLLUM MAKINO ON HUMAN IMMUNE CELLS
Authors: B. Sriwanthana, W. Threesangsri, W. Wanavichet, P. Chavalittumrong, J. Bansiddhi, Y. Techadamrongsin
Keywords: immunomodulator, jiaogulan, lymphocyte proliferation, NK cell activity
Abstract:
Use of herbs as health and/or dietary supplements has increased worldwide. The most common usage of botanicals is to improve the immune system. Water extract of Gynostemma pentaphyllum Makino was studied for its effects on lymphocyte proliferation and natural killer (NK) cell activity. Lymphocyte proliferation of normal peripheral blood mononuclear cells (PBMC) in response to G. pentaphyllum extract was increased at concentrations of (in ng/mL) 1, 10, 100, and (in µg/mL) 1, 5, 10 and 100. Aqueous extract of G. pentaphyllum reduced lymphocyte proliferation at 1 µg/mL, suggesting immunomodulating activities on human immunocompetent PBMC.
I will add more research articles as I come across them.
Furthermore, any anecdotal records would be greatly appreciated.
Edited by mentatpsi, 02 January 2010 - 10:52 PM.