Results 81 to 90 of about 62,775,292 (207)

Analysis of 20-Hydroxyecdysone and Its Analogs by High Performance Liquid Chromatography – Mass Spectrometry

, 2017
[[abstract]]在昆蟲發育過程中，20-羥基蛻皮激素 (20-Hydroxyecdysone) 及其類似物扮演重要的角色，其影響生命週期的演進，包括蛻皮、繁殖、壓力反應和壽命等等。使用酵素免疫分析法分析這類激素，雖然可以得知所有類似物的約略總量，但不能清楚知道個別分析物的濃度。因此，本研究開發了高效液相層析-大氣壓力化學游離-質譜分析法 (high performance liquid chromatography - atmospheric pressure chemical ...
Shiu, Wei-Chiang, 徐偉強
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Isolation of secondary metabolites from Stenochlaena palustris stems and structure-activity relationships of 20-hydroxyecdysone derivatives on antitermite activity

, 2018
Stenochlaena palustrisis an edible fern, belonging to the Blechnaceae family and is called kelakai in South Kalimantan, Indonesia. The effects of fractions ofS.
Arif Juliari Kusnanda, Mamoru Koketsu, Masayuki Ninomiya, Morina Adfa, Antoni Pardede   +4 more
core   +1 more source

TLC analysis to determine the seasonal dependence of the level of 20-hydroxyecdysone in the leaves of Serratula tinctoria (L)

, 1996
A quantitative method has been developed for determination of the 20-hydroxyecdysone content of Serratula tinctoria (L.), Thin-layer chromatography on silica was performed in two consecutive steps; the first was with chloroform - ethanol and the ...
Kalász Huba, Praszna Lajos, Báthori Mária, Máthé Imre, Rischak Katalin   +4 more
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Nucleotide sequence of an adult-specific cuticular protein gene from the beetle Tenebrio molitor: effects of 20-hydroxyecdysone on mRNA accumulation

, 1993
0962-1075 (Print) Journal Article Research Support, Non-U.S. Gov'tThe accumulation of transcripts from two adult-specific cuticular genes (ACP-20 and ACP-22) is shown to be modified after addition of exogenous 20-hydroxyecdysone.
Charles, Jean-Philippe, Quennedey, Brigitte, Delachambre, Jean, Braquart-Varnier, Christine, Bouhin, Hervé   +4 more
core   +1 more source

Mitogenic effects of 20-hydroxyecdysone on neurogenesis in adult mushroom bodies of the cockroach, Diploptera punctata

, 2010
[[abstract]]The purpose of this study was to examine the mitogenic effects of 20-hydroxyecdysone on neurogenesis in mushroom bodies of the adult cockroach, Diploptera punctata. The occurrence of neurogenesis Ras studied immunocytochemically after in vivo
Gu, SH;Tsia, WH;Chiang, AS;Chow, YS
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The metabolism of 20-hydroxyecdysone in mice: Relevance to pharmacological effects and gene switch applications of ecdysteroids

, 2011
Ecdysteroids exert many pharmacological effects in mammals (including humans), most of which appear beneficial, but their mechanism of action is far from understood.
Kumpun, Saowanee, S., S. Kumpun, R. Lafont, Maria, Annick, A., Yingyongnarongkul, Boon Ek, B. E., C. Dauphin-Villemant, Blais, Catherine, C., A. Maria, A. Suksamrarn, Maria, Annick,, L. Dinan, Girault, Jean-Pierre, J.-P., Lafont, René, R., Yingyongnarongkul, Boon Ek,, Kumpun, Saowanee,, Suksamrarn, Apichart,, B. Yingyongnarongkul, J.-P. Girault, Dinan, Laurence,, C. Blais, Suksamrarn, Apichart, A., Blais, Catherine,, Dauphin-Villemant, Chantal, C., Dauphin-Villemant, Chantal,, Dinan, Laurence, L., Lafont, René,, Girault, Jean-Pierre,   +26 more
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Epidermal collagenase activity and its induction by 20-hydroxyecdysone in the fiddler crab Uca pugilator

Current Zoology, 2009
The epidermal collagenase activity and its induction by 20-hydroxyecdysone in Uca pugilator were investigated. Zymographic electrophoresis showed four bands of collagenase activity, 16, 19, 22 and 29 kDa in molecular weight, with the former two ...
Erin A. TOUPS, Erin A. TOUPS
doaj  

New ecdysteroids from Serratula tinctoria

, 1992
Six new ecdysteroids have been isolated from Serratula tinctoria; these are: the 2,22- and 3,22-diacetates of 20-hydroxyecdysone, 5β-hydroxyrubrosterone, 3-epi-poststerone, 3-epi-rubrosterone, and 22-oxo-20-hydroxyecdysone.
Gharbi J, Melis K, Lafont R, Girault J-P, Báthori Mária, Rudel D, Szendrei Kálmán, Racz I   +7 more
core   +1 more source

Effects of ingested phytoecdysteroids in the female soft tick Ornithodoros moubata.

, 1995
The effects of the ingestion of some phytoecdysteroids were studied in the soft tick Ornithodoros moubata. Supernumerary moulting and malformations of first leg pairs were obtained with 22-oxo-20-hydroxy-ecdysone, 20-hydroxyecdysone-22-acetate, and 20 ...
Lafont R, Wuest J, Connat JL, Savolainen V   +3 more
core   +1 more source

Mechanistic multiscale modeling identifies putative natural tri-target candidates of MAO-B, LRRK2 and A₂A for Parkinson’s disease

Scientific Reports
Parkinson’s disease (PD) is a rapidly growing neurodegenerative disorder for which current dopaminergic and device-based therapies remain purely symptomatic and fail to modify disease progression.
Oussama Khibech, Salma Kadda, Said Abadi, Abdessamad Benabbou, Mohamed Bouhrim, Shehdeh Jodeh, Diana Jodeh, Belkheir Hammouti, Allal Challioui   +8 more
doaj   +1 more source