Zobrazeno 1 - 10
of 786
pro vyhledávání: '"G.B. Elyakov"'
Publikováno v:
Toxicon. 28:1255-1263
The toxin was treated with [14C]trimethyloxonium tetrafluoroborate or [3H]glycine methyl ester in the presence of 1-ethyl-3(3-dimethylaminopropyl) carbodiimide. Esterification of separate carboxyl groups with [14C]trimethyloxonium tetrafluoroborate d
Autor:
G.B. Elyakov, Kozlovskaya Emma P
Publikováno v:
Toxicon. 33:715
Autor:
E.B. Shentsova, G.I. Oshitok, Levina Ev, N.I. Uvarova, L.I. Strigina, V.V. Shcheglov, G.B. Elyakov, M.M. Anisimov
Publikováno v:
Toxicon. 16:31-36
The relationship between chemical structure and cytotoxic effect of 35 triterpenes and of their dammaran row glycosides and betulin has been studied. Some of these compounds had a cytotoxic effect on developing sea urchin embryos. Depending on their
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 76:167-171
1. 1. Sulphated and etherified sterols were isolated from the far eastern holothurian Stichopus japonicus S. The sterol composition of both fractions was determined using gas-liquid chromatography and mass-spectroscopic methods. The structures of ind
Autor:
Valery A. Rasskazov, M.M. Anisimov, E.B. Shentsova, G.B. Elyakov, L.I. Strigina, N. S. Chetyrina, V.V. Shcheglov, Yu.N. Shumilov
Publikováno v:
Toxicon. 16:207-218
A study was carried out to elucidate the effects of triterpene glycosides of stichoposide A from Stichopus japonicus S., caulosides B and C from Caulophyllum robustum M., aescin from Aesculus hippocastarus L. and theasaponin from Thea sinensis L., up
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 71:325-328
1. 1. Sulfated sterols from brittle star Macrophiotrix longipeda, sea urchin Strongylocentrotus intermedius and sea lily Himerometra robustipinna have been isolated using column chromatography on tephlon powder and silica gel and studied by spectrosc
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 74:597-601
1. 1. Sterol composition of holothurian Stichopus japonicus Selenka was isolated and studied by gas-liquid chromatography-mass spectra analyses and also by NMR-spectroscopy. 2. 2. It was shown that sterol fraction constituents are C 27 , C 28 , C 29
Publikováno v:
Toxicon. 20:655-658
Marine glycosides from the sea cucumbers Actinopyga agassizi, Holothuria atra, Bohadschia argus, Cucumaria fraudatrix, Astichopus multifidus and Thelenota ananas inhibit both Na+-K+ ATPase and Mg2+-ATPase of rat brain in vitro. The glycoside-choleste
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 65:309-314
1. 1. Steroid glycosides from holothurian Stichopus japonicus Selenka were investigated. The β-monoside fraction has been isolated by chromatography on silica gel columns with subsequent preparative thin-layer chromatography on a fixed silica gel la
Publikováno v:
Tetrahedron Letters. 24:3893-3896
A novel steroidal glycoside has been isolated from the starfish Patiria pectinifera and its structure was determined as 5′ -O- sulfate 24-(d-3-O-metyl-L-arabinofuranosyl)-3β,6d, 8β, 15d, 24- pentaoxy-5d- cholestane.