| Analysis of herbal teas made from the leaves of comfrey (Symphytum officinale): reduction of N-oxides results in order of magnitude increases in the measurable concentration of pyrrolizidine alkaloids. |
2004 |
7380 |
Objectives: To determine the relative quantities of two hepatotoxic pyrrolizidine alkaloids, symphytine and echimidine, in teas prepared from comfrey leaves (Symphytum officinale), and to determine the potential contribution of the N- oxide forms of ... |
| Biosynthetically Distinct Cytotoxic Polyketides from Setophoma terrestris |
2015 |
775 |
Sixteen polyketides belonging to diverse structural classes, including monomeric/dimeric tetrahydroxanthones and resorcylic acid lactones, were isolated from an organic extract of a fungal culture Setophoma terrestris (MSX45109) by bioactivity-direct... |
| Discovery of Anticancer Agents of Diverse Natural Origin |
2016 |
561 |
Recent progress is described in an ongoing collaborative multidisciplinary research project directed towards the purification, structural characterization, chemical modification, and biological evaluation of new potential natural product anticancer a... |
| Diterpene glycosides from Egletes Viscosa |
2005 |
1931 |
A phytochemical investigation of the CHCl3-soluble extract of the entire plant of Egletes viscosa (Asteraceae), collected in Peru, afforded two new labdane glycosides, 13-hydroxy-7-oxolabda8,14-diene 13(R)-0-a-L-arabinopyranoside and 13–hydroxy-7-oxo... |
| Milk thistle and prostate cancer: Differential effects of pure flavonolignans from Silybum marianum on antiproliferative end points in human prostate carcinoma cells. |
2005 |
2450 |
Extracts from the seeds of milk thistle, Silybum marianum, are known commonly as silibinin and silymarin and possess anticancer actions on human prostate carcinoma in vitro and in vivo. Seven distinct flavonolignan compounds and a flavonoid have been... |
| Peptaibols from Two Unidentified Fungi of the Order Hypocreales with Cytotoxic, Antibiotic, and Anthelmintic Activities |
2012 |
1318 |
As part of an ongoing investigation of filamentous fungi for anticancer leads, an active culture was identified from the Mycosynthetix library (MSX 70741, of the order Hypocreales, Ascomycota). The fungal extract exhibited cytotoxic activity against ... |
| Sorbicillinoid Analogs with Cytotoxic and Selective Anti-Aspergillus Activities from Scytalidium album |
2014 |
1193 |
As part of an ongoing project to explore filamentous fungi for anticancer and antibiotic leads, 11 compounds were isolated and identified from an organic extract of the fungus Scytalidium album (MSX51631) using bioactivity-directed fractionation agai... |
| Spiroscytalin, a New Tetramic Acid and Other Metabolites of Mixed Biogenesis from Scytalidium cuboideum |
2015 |
1452 |
Spiroscytalin (1), a new tetramic acid that possesses an uncommon spiro-ring fusion between a polyketide-derived octalin ring system and a 2,4-pyrrolidinedione, along with two known compounds, leporin B (2) and purpactin A (3), were isolated from a s... |
| Synergistic antimicrobial activity of metabolites produced by a nonobligate bacterial predator |
2003 |
1808 |
A naturally occurring, gram-negative, nonobligate predator bacterial strain 679-2, exhibits broad-spectrum antimicrobial activity that is due, in part, to the production of three extracellular compounds. Antimicrobial-activity-directed fractionation ... |
| Thielavin B Methyl Ester: A Cytotoxic Benzoate Trimer from an Unidentified Fungus (MSX 55526) from the Order Sordariales |
2011 |
1291 |
As part of our ongoing investigation of filamentous fungi for anticancer leads, an active fungal extract was identified from the Mycosynthetix library (MSX 55526; from the Order Sordariales). Bioactivity-directed fractionation yielded the known ergos... |
| Use of the Hollow Fiber Assay for the Discovery of Novel Anticancer Agents from Fungi |
2012 |
1399 |
The hollow fiber assay (HFA) is a drug discovery tool to aid investigators in the prioritization of lead compounds identified by in vitro testing for further development in animal models of disease. In the HFA, cells are cultured in hollow fibers con... |
| Waol A, trans-dihydrowaol A, and cis-dihydrowaol A: polyketide-derived (gamma)-lactones from a Volutella species |
2013 |
1186 |
An organic extract of a filamentous fungus (MSX 58801), identified as a Volutella sp. (Hypocreales, Ascomycota), displayed moderate cytotoxic activity against NCI-H460 human large cell lung carcinoma. Bioactivity-directed fractionation led to the iso... |