Phytoecdysteroid constituents from cyanotis arachnoidea

These phytoecdysteroids have medicinal value and are part of herbal adaptogenic remedies like cordyceps , a fungus that grows out of the larvae of several insect species. (Although fungi are not plants, "fungalecdysteroid" does not exist as a category and phytoecdysteroid is the term used.) Medicinal plants tested to include phytoecdysteroids include Achyranthes bidentata [ 3 ] , Tinospora cordifolia [ 4 ] , Pfaffia paniculata [ 5 ] Leuzea carthamoides [ 6 ] , Rhaponticum uniflorum (Zhang et al. 2002), and Serratula coronata [ 7 ] . The ginsengs and Eleutherococcus have not been studied for these compounds but exhibit similar characteristics. [ 8 ]

Procedures are presented for the assessment of the phytoecdysteroid profiles in small plant samples (ca. 25 mg), using seeds of Sida spp. as an example. The procedures are suitable for the analysis of minute or valuable samples and provide copious information for chemotaxonomic purposes. Methanolic extracts of the plant material, after partioning against hexane, were separated by reversed‐phase gradient HPLC monitored by PAD, RIA and bioassay. Aliquots of the fractions were also treated with Helix pomatia hydrolases, followed by RIA and bioassay, in order to assess the presence of hydrolysable ecdysteroid conjugates. Further information could also be obtained by separation of samples using normal‐phase gradient HPLC. Among 11 species of Sida examined, seed extracts of S. acuta (=) and S. rhombifolia were found to contain significant amounts of ecdysteroids, seed extracts of S. filicaulis contained only moderate levels, whilst the remaining species showed no detectable levels of ecdysteroids. The ecdysteroid profiles of the extracts of the three positive species were significantly different, demonstrating that phytoecdysteroids have chemotaxonomic value in this genus. Copyright © 2001 John Wiley & Sons, Ltd.

[1] Phytoecdysteroids: Understanding Their Anabolic Activity  by Jonathan Gorelick-Feldman at Rutgers
[2]  Ecdysteroids from Chenopodium quinoa Willd., an ancient Andean crop of high nutritional value
[3] Level and distribution of 20-hydroxydysone during Pfaffi glomerata development
[4] Phytoecdysteroids: Understanding Their Anabolic Activity by Jonathan Gorelick-Feldman at Rutgers
[5] Effects and applications of arthropod steroid hormones (ecdysteroids) in mammals.
[6] Practical uses for ecdysteroids in mammals including humans: an update

Phytoecdysteroid constituents from cyanotis arachnoidea

phytoecdysteroid constituents from cyanotis arachnoidea

Media:

phytoecdysteroid constituents from cyanotis arachnoideaphytoecdysteroid constituents from cyanotis arachnoideaphytoecdysteroid constituents from cyanotis arachnoideaphytoecdysteroid constituents from cyanotis arachnoideaphytoecdysteroid constituents from cyanotis arachnoidea

http://buy-steroids.org