• Archives of Pharmacal Research
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• 제26권12호
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• pp.1102-1108
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• 2003

We studied the effects of phytolaccosides, saponins from Phytolacca americana, on the intestinal absorption of heparin in vitro and in vivo. The absorption enhancing activity of these compounds (phytolaccosides B, $D_2$, E, F, G and I) was determined by changes in transepithelial electrical resistance (TEER) and the transport amount of heparin disaccharide, the major repeating unit of heparin, across Caco-2 cell monolayers. With the exception of phytolaccoside G, all of them decreased TEER values and increased the permeability in a dose-dependent and time-dependent manner. In vitro, phytolaccosides B,$D_2$, and E showed significant absorption enhancing activities, while effects by phytolaccoside F and I were mild. In vivo, phytolaccoside E increased the activated partial thromboplastin time (APTT) and thrombin time, indicating that phytolaccoside E modulated the transport of heparin in intestinal route. Our results suggest that a series of phytolaccosides from Phytolacca americana can be applied as pharmaceutical excipients to improve the permeability of macromolecules and hydrophilic drugs having difficulty in absorption across the intestinal epithelium.

• 생약학회지
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• 제10권2호
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• pp.73-77
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• 1979

Antiinflammatory action of phytolaccosides B and E isolated from the roots of Phytolacca americana was investigated and compared with that of aescin. Phytolaccoside B, when it was administered intravenously, exerted a potent inhibitory effect on the transudation caused by absorptive sponge pellet implanted s.c. in rats and on carrageenin induced edema in rats. Phytolaccoside E showed a weaker action than Phytolaccoside B did. Hemolytic potency of the saponins was decreased in the order of aescin, phytolaccosides B and E showing a same tendency as in antiinflammatory action. The experimental result suggests that the mode of action of phytolaccosides is the same as that of aescin.

• 한국동물학회:학술대회논문집
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• 한국동물학회 1997년도 한국생물과학협회 학술발표대회
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• pp.234.1-234
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• 1997

No Abstract, See Full Text

• 대한약학회:학술대회논문집
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• 대한약학회 2001년도 Proceedings of the Pharmaceutical Society of Korea
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• pp.183.2-184
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• 2001

• 식물조직배양학회지
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• 제25권6호
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• pp.507-514
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• 1998

자리공 엽절편에 Agrobacterium tumefaciens $A_4$T을 접종하여 암상태에서 초기 접종량의 139배로 분지능이 높고 성장률이 우수한 모상근 세포주인 PEH2를 선발하였다. 선발된 모상근으로부터 생리활성 물질인 Phytolaccoside G 및 D2를 IR, Mass, NMR등으로 동정하였다. 모상근 PEH2의 성장은 SH배지에서 가장 양호하였으며, 암상태 보다 광상태에서 배양하였을 때 40% 성장이 억제되었으며, betalain의 생성은 white 배지에서 가장 양호하였다. 배지별 Phytolaccoside G와 D2의 생성은 MS배지에서 암상태로 배양하였을 때 가장 양호하였으며, SH 및 . White 배지에서는 암상태보다 광상태에서 높은 생성을 나타내어 phytolaccoside G와 D2의 생성은 광에너지에 의하여 조절됨을 확인하였다. 자리공 모상근에서 betalain 및 phytolaccoside G와 D2의 생산성을 향상시키기 위한 방안으로 처리한 elicitor 을 처리하였던 바, 모상근의 성장은 억제되었으나, chitosan 및, yeast extract에 의하여 betalain 및 Phytolaccoside G와 D2의 생성이 촉진되어 적절한 elicitor와 광의 조합처리는 자리공 모상근으로부터 betalain 및 Phytolaccoside G와 D2의 생산성을 향상시킬 수 있음을 확인하였다.

• 생약학회지
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• 제7권1호
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• pp.51-54
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• 1976

Steroid and terpenoid constituents of 3 species of genus Phytolacca have been examined by TLC. All contained ${\alpha}$-spinasterol, its glucoside and acylated glucoside, jaligonic acid and its methylester, esculentic acid and its methylester, and 10 phytolaccosides. Jaligonic acid was the major free triterpenoid and phytolaccoside E was the major saponin in all plants. Bayogenin, oleanolic acid, spergulagenic acid, acinosolic acid, hederogenin, and their derivatives contained in other Phytolacca spp. were not found in these plants.

• 생약학회지
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• 제7권1호
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• pp.47-50
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• 1976

Ten saponins named phytolaccoside $A{\sim}I$ and O were separated and shown to contain only $_D-glucose$ as sugar except phytolaccoside A which contains only $_D-xylose$. Phytolaccagenic acid was found to be a genin for phytolaccosides A and D, phytolaccagenin for B, E and F, jaligonic acid for G, and esculentic acid for C, H, I and O, respectively. The total saponin fraction exhibited strong anti-inflammatory activity.