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Family Menispermaceae
Stephania
Stephania sasakii Hyata.

Tai wan qian jin teng

Scientific names Common names
Stephania sasakii Hyata ex Yam Tai wan qian jin teng (Chin.)
Stephania merrillii Diels.  
   
No Philippine local names.
Quisumbing's compilation lists Stephania sasakii Hayata and Stephania merrillii Diels as separate species. Other compilations list them as synonyms. (See Taxon Info below)

Botany
Stephania sasakii is a vigorous, woody vine. Branches are about 1 centimeter in diameter, with 10 ridges. Smooth leaves are broadly ovate or somewhat rounded, 9 to 12 centimeters long, 8.5 to 11 centimeters wide; the apex short, mucronate, and pointed, the base rounded and peltate, on petioles as long as the leaves; the margins entire and minutely revolute. Fruiting branches are peduncle3d, 8 to 12 centimeters long, and borne in the axils of the leaves. Fruit is obovate, about 1.2 centimeters long, and 1 centimeter wide, and 4 millimeters thick.
Stephania

Additional taxon info
Stephania sasakii was originally reported from Kotosho Island, southeast of Taiwan. A specimen of Stephania collected on Batan Islands, Batanes was identified as S. sasakii. It is considered to differ from its common allied species Stephania merrillii in size of the leaves, which are broader and rounder, but also in its larger fruit, and other floral characteristics of the sepals and petals.

Distribution
- Originally identified in Taiwan.
- Also reported in Batan Islands, Batanes.

Constituents
- Species of Stephania are of interest chemically and therapeutically.
- Stephania cepharantha Hayata in Takao, Taiwan, yielded an alkaloid, cepharantin, which was studied and used in Japan as a cure for tuberculosis.
- Studies have reported the presence of cepharantin in S. sasakii in Taiwan.
- There are no studies that confirm its presence in Philippine species of Stephania in Luzon: S. Merrillii, S. ramosii, and S. catosepala. Non
e of these three species have the stout and tuberous roots of S. cepharantha, but the stems may contain the alkaloid, cepharantin, isolated from S. sasakii.

Uses

Folkloric
No reported folkloric medicinal use in the Philippines.
In Japan,
cepharantin alkaloid has been studies and used in the treatment and prevention of tuberculosis.

Studies
Akaloids:
1980 study isolated five new alkaloids, dehydrocrebanine, 4,5-dioxodehydrocrebanine, stesakine, dehydrostesakine, bisaknadinine and four known alkaloids, lirodenine, lanuginosine, 1-tetrahydropalmatine, d-isocorydine with a few alkaloids of unknown structure.

Availability
Wild-crafted.

September 2011

Additional Sources and Suggested Readings
(1)
Stephania merrillii Diels / The Plant List
(2)
The alkaloids of Stephania sasakii: Structure of five new alkaloids / Jun-ichi Kunitomo, Yoshiko Murakami, Megumi Oshikata et al / Phytochemistry, Vol 19, No 12, 1980, Pp 2735-2739 / doi:10.1016/S0031-9422(00)83953-9
(3)
Constitution of three new alkaloids, aknadinine (4-demethylhasubanonine), aknadicine (4-demethylnorhasubanonine), and aknadilactam (4-demethyl-16-oxohasubanonine) / B. K. Moza, B. Bhaburi and D. K. Basu / Tetrahedron, Vol 26, No 2, 1970, Pages 427-433 / doi:10.1016/S0040-4020(01)97839-1


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