Summary of Ph.D. Thesis Ecdysteroid profile of Silene viridiflora and the effect of 20-hydroxyecdysone on rat muscle fibres in vivo
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Effect of 20-Hydroxyecdysone on Proteolytic Regulation in Skeletal Muscle Atrophy.
BACKGROUND/AIM 20-Hydroxyecdystone (20E) is an ecdysteroid hormone which controls molting and reproduction in arthropods. 20E also produces a variety of effects in vertebrates, including enhancing protein synthesis and skeletal muscle regeneration. The effect of 20E on disuse muscle atrophy has not been reported to date. This study examined the proteolytic regulation of 20E in tenotomized rat s...
متن کاملDietary Effects of Four Phytoecdysteroids on Growth and Development of the Indian Meal Moth, Plodia interpunctella
Using pure phytoecdysteroids isolated from Ajuga iva (L.) Schreber (Lamiales: Lamiaceae) and Silene nutans L. (Caryophyllales: Caryophyllaceae), plants known for their high ecdysteroid content, a study was carried out on the effects of ingestion of four different phytoecdysteroids (20-hydroxyecdysone, polypodine B, ponasterone A and makisterone A) on the growth and development of the Indian mea...
متن کاملOVARIAN ECDYSTEROID LEVELS AND BASAL OdCYTE DEVELOPMENT DURING MATURATION IN THE COCKROACH BLATTELL/ GERMANICA (L.)
By using enzyme immunoassay techniques we have quantified the ovarian ecdysteroids during the 7-day cycle of olicyte maturation in Blattella germanica. Immunoreactive ecdysteroid levels were low on days O-2, increased to higher values on days 3-6, and peaked on day 7 (about 5 ng of 20-hydroxyecdysone equivalents per pair of ovaries). The predominant non-conjugated ovarian ecdysteroid detected b...
متن کاملInduction of enzymes involved in molting hormone (ecdysteroid) inactivation by ecdysteroids and an agonist, 1,2-dibenzoyl-1-tert-butylhydrazine (RH-5849).
Molting in insects is regulated by molting hormones (ecdysteroids). The major active hormone, 20-hydroxyecdysone, is formed by ecdysone 20-monooxygenase-catalyzed hydroxylation of ecdysone. During times of decreasing hormone titers, inactivation occurs by several routes including (i) 26-hydroxylation and further oxidation to the 26-oic acid, (ii) formation of various conjugates (e.g. phosphates...
متن کاملThe effect of crocin (a derivative of Crocus sativus L.) on neural development and regeneration of rat: in vivo and in vitro study
In this study, the effect of crocin, a substance found in Crocus sativus L. stigmata on nervous system development and regeneration was investigated. Crocin is a glycosyl ester of the polyene dicarboxylic acid crocetin and is one of the few families of carotenoids found in nature, which are freely soluble in water. In the first experiment, the effect of crocin (30 microM, 60 microM and 120 micr...
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تاریخ انتشار 2010