Results 151 to 160 of about 4,595,378 (204)

Efficacy of oral 20-hydroxyecdysone (BIO101), a MAS receptor activator, in adults with severe COVID-19 (COVA): a randomized, placebo-controlled, phase 2/3 trial. [PDF]

EClinicalMedicine
Lobo SM, Plantefève G, Nair G, Joaquim Cavalcante A, Franzin de Moraes N, Nunes E, Barnum O, Berdun Stadnik CM, Lima MP, Lins M, Hajjar LA, Lipinski C, Islam S, Ramos F, Simon T, Martinot JB, Guimard T, Desclaux A, Lioger B, Neuenschwander FC, DeSouza Paolino B, Amin A, Acosta SA, Dilling DF, Cartagena E, Snyder B, Devaud E, Barreto Berselli Marinho AK, Tanni S, Milhomem Beato PM, De Wit S, Selvan V, Gray J, Fernandez R, Pourcher V, Maddox L, Kay R, Azbekyan A, Chabane M, Tourette C, Esmeraldino LE, Dilda PJ, Lafont R, Mariani J, Camelo S, Rabut S, Agus S, Veillet S, Dioh W, van Maanen R, Morelot-Panzini C.   +50 more
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Jones Oxidation of 20-Hydroxyecdysone (Crustecdysone)

Australian Journal of Chemistry, 1993
Oxidation of 20-hydroxyecdysone ( crustecdysone ) (4) with Jones reagent gives a 2:1 mixture of posterone (1) and its 3-keto derivative (2). A possible source of (2) is suggested.
QR Petersen, RC Cambie, GB Russell
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Induction of choriogenesis by 20-hydroxyecdysone in the german cockroach

Tissue and Cell, 1993
Experiments in vitro have shown that 20-hydroxyecdysone (at a concentration of 0.2 and 2 microM and after 12 and 24 hr of incubation) is able to induce the precocious deposition of chorion materials by the follicular epithelium of young oocytes of the cockroach Blattella germanica.
Xavier Belles, P Cassier, Xim Cerda
exaly   +3 more sources

Stereoselective synthesis and moulting activity of 2,3-diepi-20-hydroxyecdysone and 2,3-diepi-5α-20-hydroxyecdysone

Tetrahedron, 2004
The ecdysteroid analogues 2,3-diepi-20-hydroxyecdysone and 2,3-diepi-5α-20-hydroxyecdysone have been synthesized from the readily available ecdysteroid, 20-hydroxyecdysone, and moulting activity has been determined using the Musca bioassay. As expected, the 2,3-diepi-analogue was less active than the parent ecdysteroid, 20-hydroxyecdysone. However, the
Nitirat Chimnoi, Apichart Suksamrarn
exaly   +2 more sources

The Analysis and Crystallographic Characterization of 20-Hydroxyecdysone.

Current Medicinal Chemistry, 2000
20-Hydroxyecdysone (20E) is an insect molting hormone that is also widely spread in various plants. Many chromatographic methods can be used to identify and/or determine 20E content in samples of biological origin and various spectroscopic methods serve to identify its structural elements.
M, Báthori, A, Kálmán, G, Argay, H, Kalász   +3 more
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Stimulation of polydnavirus replication by 20-hydroxyecdysone

Experientia, 1992
During oviposition the endoparasitic wasp Campoletis sonorensis, introduces a polydnavirus into parasitized insects where viral gene expression is required for endoparasite survival. The polydnavirus is integrated into wasp chromosomal DNA and replicates only in the ovary.
B A, Webb, M D, Summers
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Transformation of 20-hydroxyecdysone to inokosterone

Mendeleev Communications, 2006
Δ24/Δ25-Derivatives of 20-hydroxyecdysone were hydroborated by sodium borohydride in the presence of CuCl followed by oxidation of organoboron intermediate and deblocking of hydroxyl groups to synthesise the zoo-and phytoecdysteroid inokosterone.
Rimma G. Savchenko, Ruslan V. Shafikov, Svetlana R. Afonkina, Viktor N. Odinokov   +3 more
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The role of 20-hydroxyecdysone on the control of spider vitellogenesis

General and Comparative Endocrinology, 2003
We investigated the role of 20-hydroxyecdysone (20E) on the ovarian maturation and protein levels and pattern in adult females of the spider Tegenaria atrica. In unmated females, the ovaries did not initiate vitellogenesis and levels of proteins in the hemolymph and ovaries were low.
Grégory, Pourié, Marie, Trabalon
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Stereochemistry of Hydride Reduction of 20‐Hydroxyecdysone Derivatives.

ChemInform, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
V. N. Odinokov, R. G. Savchenko, R. V. Shafikov, S. R. Afon'kina, L. M. Khalilov, V. V. Kachala, A. S. Shashkov   +6 more
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Transformation of 20‐Hydroxyecdysone Acetonides into Podecdysone B.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
V. N. Odinokov, I. V. Galyautdinov, D. V. Nedopekin, N. A. Ves'kina, L. M. Khalilov   +4 more
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