Zobrazeno 1 - 10
of 50
pro vyhledávání: '"G.H. Constantine"'
Publikováno v:
SpringerPlus
The brine shrimp (Artemia salina) bioassay was used to screen 211 methanol extracts from 128 species of Pacific Northwest plants in search of general cytotoxic activity. Strong toxicity (LC50 1000 µg/ml). Our subsequent studies of conifer heartwoods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30ff48fcd3d863022af6bf668a2a01cf
https://doi.org/10.1186/s40064-016-2145-1
https://doi.org/10.1186/s40064-016-2145-1
Autor:
G.H. Constantine, J. Karchesy
Publikováno v:
Pharmaceutical Biology. 36:365-367
Twelve samples of Hypericum perforatum L. (St. John’s wort) were collected throughout Oregon and assayed for hypericin concentrations which ranged from 0.03 to 0.38%. Eight commercially available dietary supplements were also assayed using the same
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21d5d20a968c6b75897e1b8b8964b1a2
https://doi.org/10.1076/phbi.36.5.365.4651
https://doi.org/10.1076/phbi.36.5.365.4651
Publikováno v:
Fitoterapia. 72(5)
The isolation of (+)-totarol as active compound against Mycobacterium tuberculosis is reported from Chamaecyparis nootkatensis outerbark.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81214b42f8b313b17c8b3aa0c097d4a0
https://pubmed.ncbi.nlm.nih.gov/11429259
https://pubmed.ncbi.nlm.nih.gov/11429259
Publikováno v:
Toxicology and Applied Pharmacology. 54:399-404
Treatment of Yersinia ruckeri-infected juvenile coho salmon with tobramycin (TBM) revealed significant toxicity of the drug to these fish. In a group of fish receiving only 5 mg/kg/day a cumulative mortality of 100% was observed in 21 days. To verify
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98c096fc5955d6e3144b276f07ffb68e
https://doi.org/10.1016/0041-008x(80)90166-0
https://doi.org/10.1016/0041-008x(80)90166-0
Publikováno v:
Aquaculture. 5:299-304
Selective solvent extracts prepared from 25 species of marine invertebrates collected in the waters of the Pacific Northwest were evaluated for antimicrobial activity. 52 instances of inhibition of microbial growth were observed, including 23 against
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a95be1416d15f6575ea3ef0aad9327f
https://doi.org/10.1016/0044-8486(75)90007-1
https://doi.org/10.1016/0044-8486(75)90007-1
Publikováno v:
Marine Chemistry. 1:157-162
Choline sulfate (ester) was isolated from the marine imperfect fungus Zalerion maritimum (Linder) Anastasiou, and was subsequently revealed by comparative thin-layer chromatography in eighteen additional isolates of marine fungi including Z. maritimu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d87f236d345db3387cca5438b0a68b2
https://doi.org/10.1016/0304-4203(73)90014-5
https://doi.org/10.1016/0304-4203(73)90014-5
Publikováno v:
Journal of Pharmaceutical Sciences. 55:1378-1382
Improved methods of extraction and new techniques of isolation and identification of 11 components from the title plants were conducted. A solvent mixture of diverse polarity extracted four polycyclic compounds, a hydrocarbon, two flavonoids, and fou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67197ca326c1612f5ed94d41b5ab8398
https://doi.org/10.1002/jps.2600551210
https://doi.org/10.1002/jps.2600551210
Publikováno v:
Phytochemistry. 7:1379-1383
The underground portions of Vaccinium membranaceum (Dougl.) and V. parvifolium (Sm.) were examined for their triterpene content. The first-mentioned ericaceous plant yielded taraxerol, taraxerone, β-sitosterol, and friedel-3-ene. All but the last co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e01c0871c88510ec33328d8dc53fe1a
https://doi.org/10.1016/s0031-9422(00)85641-1
https://doi.org/10.1016/s0031-9422(00)85641-1
Autor:
J. H. Block, G.H. Constantine
Publikováno v:
Phytochemistry. 11:3279-3282
Updated NMR evidence is given that a previously reported triterpenoid oxide is not D:B Friedoolean-3,5-oxide, but is, instead, D:B-Friedoolean-3,10-oxide. A mechanistic explanation is given as to why the chemical evidence does not seem to support the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17f99809a08154296663a9c888f20d61
https://doi.org/10.1016/s0031-9422(00)86389-x
https://doi.org/10.1016/s0031-9422(00)86389-x
Autor:
G.H. Constantine
Publikováno v:
Phytochemistry. 9:1659-1665
The triterpenoid epoxide present in the title plant has been isolated previously from species of Dendropanax and other Rhododendrons and given different names, i.e. epoxyglutinane, dendropanoxide, and possibly campanulin. Previously conflicting evide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdf290210dc701dca87da366a1ba18d3
https://doi.org/10.1016/s0031-9422(00)85292-9
https://doi.org/10.1016/s0031-9422(00)85292-9