Results 151 to 160 of about 1,275 (196)

phytoecdysteroids of Silene linicola

Chemistry of Natural Compounds, 2002
Seven ecdysteroids isolated from the aerial part of Silene linicola are identified using 1H and 13C NMR methods. Their yield from raw material was determined.
N. Z. Mamadalieva, L. N. Zibareva, Z. Saatov   +2 more
openaire   +1 more source

Phytoecdysteroids - From Isolation to Their Effects on Humans

Current Medicinal Chemistry, 2005
An overview is given on both well-known and recently discovered phytoecdyteroids including a sophisticated isolation scheme and notable physiological and pharmacological effects of ecdysteroids on vertebrates. The isolation of pure ecdysteroids has been improved by the use of low-pressure reversed-phase chromatography.
Mária, Báthori, Zita, Pongrácz
openaire   +2 more sources

Phytoecdysteroids and glycoceramides from Eriophyton wallchii

Steroids, 2004
Two new compounds, 28-epi-cyasterone and eriophytonoide, along with 11 known compounds, cyasterone, ajuforrestins A and B, 20-hydroxyecdysone, polypodin B, ajugalactone, 8-O-acetylharpagid, apigenin, N-[2hydroxy-(nonadecanoyl-tricosanoyl)]-4-hydroxy-trans-8-sphingenine, beta-sitosterol, and daucosterol, were isolated from the aqueous ethanolic extract ...
Jinhai, Yi, Yinggang, Luo, Bogang, Li, Guolin, Zhang   +3 more
openaire   +2 more sources

Comprehensive analysis of antioxidant activity and bioactive phytochemicals in the endemic Klasea khuzistanica (Mozaff.) Mozaff. ex Hidalgo.: phenolics, flavonoids, and phytoecdysteroids.

Natural Product Research
Klasea khuzistanica (Mozaff.) Mozaff. ex Hidalgo., a perennial endemic species in Iran, from the Asteraceae family, was investigated for medicinal value by evaluating ecdysteroid, total phenolic content (TPC), total flavonoid content (TFC), and ...
Leila Seydmohammadi, F. Borna, Kazem Negaresh, Mohammad Reza Zare Bavani   +3 more
semanticscholar   +1 more source

Separation Methods for Phytoecdysteroids [PDF]

, 2001
Ecdysteroids are insect moulting hormones that regulate metamorphosis. Coincidentally, these compounds also show therapeutic benefits in both humans and animals. Some, particularly 20-hydroxyecdysone, are found at surprisingly high levels in certain plants, which have subsequently been subjected to intensive research as the possibility of their use in ...
Báthori Mária, Kalász Huba
openaire  

Phytoecdysteroids in seeds of Lloydia serotina (Liliaceae)

Biochemical Systematics and Ecology, 2001
Seeds of a number of species in the Liliaceae (sensu Brummitt, 1992) were examined for the presence of ecdysteroid agonist and antagonist activities. No species were antagonistic to 20-hydroxyecdysone action on the ecdysteroid-responsive Drosophila melanogaster B(II) cell line and only one extract, that of Lloydia serotina, was agonistic. This activity
L, Dinan, P, Whiting, T, Savchenko
openaire   +2 more sources

Phytoecdysteroids Effects on Mammalians, Isolation and Analysis

Mini-Reviews in Medicinal Chemistry, 2002
Ecdysteroids are known insect moulting hormones, regulating the insects' metamorphosis. At the same time, ecdysteroids reveal beneficial effects on humans and animals alike. Medicinal plants have been subjected to an intensive research, addressing the presence of ecdysteroids.
openaire   +2 more sources

Complex phytoecdysteroid cocktail of Silene otites (Caryophyllaceae)

Archives of Insect Biochemistry and Physiology, 1999
Several new minor ecdysteroids from Silene otites (Caryophyllaceae) have been purified and identified. This plant species had previously been shown to contain a complex ecdysteroid cocktail, with 20-hydroxyecdysone as the major component, and significant amounts of 2-deoxyecdysone, 2-deoxy-20-hydro-xyecdysone, and 20-hydroxyecdysone 22-acetate, and a ...
M. B�thori, J.-P. Girault, H. Kalasz, I. Math�, L.N. Dinan, R. Lafont   +5 more
openaire   +1 more source

Phytoecdysteroids in the Genus Agapanthus (Alliaceae)

Biochemical Systematics and Ecology, 1997
Bioassay/RIA-based analysis of seeds of 15 species, subspecies and varieties of Agapanthus revealed the presence of phytoecdysteroids in most of them. However, the concentrations varied markedly between samples. The accumulation of phytoecdysteroids was highest in a sample of A. campanulatus ssp. patens and a sample of A. inapertus ssp. hollandii (c. 1.
Tamara Savchenko, Pensri Whiting, Satyajit D. Sarker, Laurence Dinan   +3 more
openaire   +1 more source

Thin‐Layer Chromatography of Phytoecdysteroids

Journal of Liquid Chromatography & Related Technologies, 2003
Abstract Planar chromatography of ecdysteroids is reviewed. Separation of various ecdysteroids is detailed using both straight‐phase and reversed‐phase thin‐layer chromatography (RP‐TLC). The generally used special techniques, such as two‐dimensional TLC (2D‐TLC), forced‐flow TLC (FF‐TLC), displacement mode of development, etc., are also specified. The
M. Báthori, H. Kalász, G. Janicsák, Z. Pongrácz, J. Vámos   +4 more
openaire   +1 more source