Search Results - "Stermitz, F.R"

Comparative DNA Cross-linking by Activated Pyrrolizidine Alkaloids by Kim, H.-Y., Stermitz, F.R., Li, J.K.-K., Coulombe, R.A.

“…The toxicity and bioactivity of pyrrolizidine alkaloids (PAs), common constituents of hundreds of plant species, and in herbal remedies and folk medicines…”
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Structural influences on pyrrolizidine alkaloid-induced cytopathology by Kim, H Y, Stermitz, F R, Molyneux, R J, Wilson, D W, Taylor, D, Coulombe, Jr, R A

“…Pyrrolizidine alkaloids (PAs), which are common constituents of hundreds of plant species around the world, have been reported to have cytotoxic, carcinogenic,…”
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Some alkaloids and other constitutents of [tropical American] Zanthoxylum microcarpum and Zanthoxylum procerum by Boulware, R.T, Stermitz, F.R

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7,8-Benzoflavone: a phytotoxin from root exudates of invasive Russian knapweed [Retraction: 2009 Jan., v.70, issue 1, p. 156.] by Stermitz, F.R, Bais, H.P, Foderaro, T.A, Vivanco, J.M

“…Root exudates from Acroptilon repens (Russian knapweed) were found to be phytotoxic and the phytotoxin in the exudate was identified as 7,8-benzoflavone…”
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Laboratory evaluation of zanthophylline as a feeding deterrent for range caterpillar [Hemileuca oliviae pest of maize], migratory grasshopper [Melanoplies sanguinipes pest of barley] alfalfa weevil [Hypera postica] and greenbug [Schizaphis graminum pest of barley] by Capinera, J.L, Stermitz, F.R

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Pyrrolizidine Alkaloids Crosslink DNA with Actin by Coulombe, Roger A., Drew, Gail L., Stermitz, Frank R.

“…Pyrrolizidine alkaloids (PAs) are toxic constituents of hundreds of plant species, some of which people are exposed to in herbal products and traditional…”
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Staphylococcus aureus MDR efflux pump inhibitors from a Berberis and a Mahonia (sensu strictu) species by Stermitz, Frank R., Beeson, Teresa D., Mueller, Paul J., Hsiang, Jen-Fang, Lewis, Kim

“…Bioactive fractionation, based on multi-drug resistance (MDR) pump inhibition in Staphylococcus aureus, resulted in the isolation of the active inhibitors…”
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Stereoselective Hydrogenation and Ozonolysis of Iridoids. Conversion into Carbocyclic Nucleoside Analogues by Franzyk, Henrik, Stermitz, Frank R

“…Stereoselective hydrogenation of the iridoids geniposide (9) and aucubin (19) was achieved by using the 1-methyl-1-methoxyethyl ether as a protecting group for…”
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An amide of l- threo- γ-hydroxyglutamic acid from Justicia ghiesbreghtiana by Lorenz, Peter, Stermitz, Frank R., Ismail, Lotfy D.

“…A new amide of threo- γ-hydroxyglutamic acid, justiciamide, was isolated from Justicia ghiesbreghtiana and shown to be (−)-…”
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Iridoid glucosides from Penstemon secundiflorus and P. grandiflorus: Revised structure of 10-hydroxy-8-epihastatoside by Franzyk, Henrik, Rosendal Jensen, Søren, Stermitz, Frank R

“…Thorough large scale investigations of Penstemon secundiflorus ssp. lavendulus and of P. grandiflorus resulted in the isolation of the new iridoid glucosides…”
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Chemically mediated foraging preference of black bears (Ursus americanus) by Kimball, B.A, Nolte, D.L, Engeman, R.M, Johnston, J.J, Stermitz, F.R

“…The role of chemical constituents in the foraging behavior of black bears (Ursus americanus) was investigated using two field studies. Vascular tissue samples…”
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DNA cross-linking in mammalian cells by pyrrolizidine alkaloids: structure-activity relationships by Hincks, J R, Kim, H Y, Segall, H J, Molyneux, R J, Stermitz, F R, Coulombe, Jr, R A

“…Pyrrolizidine alkaloids (PAs) are common constituents of many species of flowering plants which possess carcinogenic as well as anticarcinogenic activity in…”
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Piperidine alkaloids of spruce ( Picea) and fir ( Abies) species by Stermitz, Frank R., Kamm, Chantel D., N. Tawara, Jeanne

“…Piperidine alkaloids are reported for the first time from Picea omorika (Serbian spruce), Abies balsamea (balsam fir), and Abies concolor (Rocky mountain white…”
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Jin bu huan toxicity in adults--Los Angeles, 1993 by Stermitz, F.R, Beck, J.J

“…Jin Bu Huan (JBH) is a traditional Chinese herbal product used as a sedative and analgesic. During 1993, public health and health-care providers in Colorado…”
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An isopavine alkaloid from Thalictrum minus by Sidjimov, Atanas K., Tawara, Jeanne N., Stermitz, Frank R., Rithner, Christopher D.

“…A new isopavine alkaloid was isolated from Thalictrum minus. Its structure was proven by spectroscopic data. A new alkaloid, isothalisopavine, was isolated…”
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Isolation and Synthesis of an α-Malamic Acid Derivative from Justicia ghiesbreghtiana by Ismail, Lotfy D, Lorenz, Peter, Stermitz, Frank R

“…A polar extract of leaves of Justicia ghiesbreghtiana yielded N-(2-hydroxy-4,5-dimethoxyphenyl)-(S)-α-malamic acid, 1. Incomplete spectral analysis yielded a…”
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Host plant utilization and iridoid glycoside sequestration by Euphydryas anicia (Lepidoptera: Nymphalidae) by Gardner, D.R. (Colorado State University, Fort Collins, CO), Stermitz, F.R

“…The iridoid glycoside content of individual adult Euphydryas anicia butterflies from two Colorado populations was quantitatively determined. At one site (Red…”
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Pyridine Monoterpene Alkaloid Formation from Iridoid Glycosides. A Novel PMTA Dimer from Geniposide by Frederiksen, Signe M, Stermitz, Frank R

“…New pyridine monoterpene alkaloids (PMTAs) have been synthesized from the iridoid glycosides 8-epi-loganin, cornin, and antirrinoside by treatment with…”
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Addition of methyl thioglycolate and benzylamine to (Z)-ligustilide, a bioactive unsaturated lactone constitutent of several herbal medicines. An improved synthesis of (Z)-ligustilide by Beck, J.J. (Colorado State University, Fort Collins, CO.), Stermitz, F.R

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Lanigerol: a new antimicrobial icetexane diterpene from Salvia lanigera by El-Lakany, A M, Abdel-Kader, M S, Sabri, N N, Stermitz, F R

“…Roots of Salvia lanigera Poir. yielded a new icetexane [10,12-dihydroxy-9(10-->20)-abeo-8,11,13-abietatriene], named lanigerol, which had activity (MIC 1…”
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