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Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition)
There continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes, so it is important to update guidelines for monitoring autophagic activity in different organisms.
Cytotoxic constituents from Brazilian red propolis and their structure-activity relationship.
Identification of arctigenin as an antitumor agent having the ability to eliminate the tolerance of cancer cells to nutrient starvation.
Investigation of the mechanism of action of arctigenin revealed that the compound blocked the activation of Akt induced by glucose starvation, which is a key process in the tolerance exhibited by cancer cells to glucose starvation.
Constituents of the Vietnamese medicinal plant Orthosiphon stamineus.
All the isolated compounds were tested for their cytotoxicity towards highly liver metastatic murine colon 26-L5 carcinoma cells, and the new diterpenes, except for 4, and flavonoids showed cytot toxicity with an ED50 value between 10 and 90 microg/ml.
Constituents of Brazilian red propolis and their preferential cytotoxic activity against human pancreatic PANC-1 cancer cell line in nutrient-deprived condition.
Chemical constituents of propolis from Myanmar and their preferential cytotoxicity against a human pancreatic cancer cell line.
- Feng Li, S. Awale, Hongyan Zhang, Y. Tezuka, H. Esumi, S. Kadota
- Biology, ChemistryJournal of natural products
- 2 July 2009
A methanolic extract of propolis obtained in Myanmar was found to inhibit PANC-1 human pancreatic cancer cells preferentially under nutrient-deprived conditions (NDM), with a PC(50) value of 9.3…
Antimalarial activity of cassane- and norcassane-type diterpenes from Caesalpinia crista and their structure-activity relationship.
Most of the tested diterpenes displayed antimalarial activity, and norcaesalpinin E showed the most potent activity with an IC50 value of 0.090 microM, more potent than the clinically used drug chloroquine (IC50, 0.29 microM).
Constituents of Caesalpinia crista from Indonesia.
Among the isolated compounds, caesalpinin N (7) represents the first example of furanocassane-type diterpene possessing an aldehyde group at C-14, and is determined based on the spectroscopic analysis.
Xanthine oxidase inhibitory activity of Vietnamese medicinal plants.
- M. Nguyen, S. Awale, Y. Tezuka, Q. L. Tran, Hiroshi Watanabe, S. Kadota
- Chemistry, MedicineBiological & pharmaceutical bulletin
- 1 September 2004
Among 288 extracts, prepared from 96 medicinal plants used in Vietnamese traditional medicine to treat gout and related symptoms, 188 demonstrated xanthine oxidase (XO) inhibitory activity at 100…