Results 161 to 170 of about 10,510 (219)
Pleiotropic Cholesterol Signaling in <i>Drosophila</i> and Mammalian Systems. [PDF]
MetabolitesKang Y, Atif M, Lee Y.
europepmc +1 more source
Gα<sub>q</sub> controls organ size and developmental timing in Drosophila. [PDF]
Cell Commun SignalUnger MF +8 more
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Biosynthesis of ecdysone and ecdysone phosphates in spinach
Phytochemistry, 1994 Abstract The polar ecdysteroid conjugate, ecdysone phosphate (2β,3β,14α,22R,25-pentahydroxy-7-en-6-one-3- phosphate) was identified in excised first leaves of spinach, where it is endogenously produced during 20- hydroxyecdysone biosynthesis. Radiolabelled [14C]ecdysone phosphate was isolated from several excised leaf assays and was hydrolysed with ...
Robert J Grebenok +2 more
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On ecdysone-binding proteins and ecdysone-like material in nematodes
International Journal for Parasitology, 1977Abstract Homogenates of Panagrellus redivivus and extracts of P. redivivus, Aphelenchus avenae and Haemonchus contortus were examined for ecdysone-binding proteins and ecdysone-like material, respectively. Sucrose density-gradient centrifugation, polyacrylamide gel electrophoresis and charcoal-dextran-binding assay failed to detect ecdysone ...
exaly +3 more sources
Ecdysone metabolism: Ecdysone dehydrogenase‐isomerase
Lipids, 1974AbstractAn enzyme system that converts α‐ecdysone to its hormonally less active 3α‐epimer was detected only in the midgut of the tobacco hornworm,Manduca sexta (L.). This system appears to be specific for the ecdysones and may represent a metabolic control point for regulating molting hormone activity.
H. N. Nigg +5 more
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Conversion of α-Ecdysone to β-Ecdysone by Crustaceans and Insects
Nature, 1969SINCE Karlson1 isolated α-ecdysone from silkworm pupae, other workers have isolated and identified three more ecdysones—β-ecdysone (crustecdysone)2, 26-hydroxy-β-ecdysone3 and 2-deoxy-β-ecdysone4—in extracts of insects and crustaceans. Additional types of ecdysones will probably be described when other species of arthropods are closely examined, as ...
D S, King, J B, Siddall
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Nature, 1976
TICKS and insects develop and grow through intermittent replacement of their integument. This moulting does not occur beyond the adult stage, with the exception of primitive apterygote insects such as silverfish, which continue to moult and grow after they become sexually mature. Moulting ceases to occur in the pterygote adult insect because the glands
C, Mango, I R, Odhiambo, R, Galun
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TICKS and insects develop and grow through intermittent replacement of their integument. This moulting does not occur beyond the adult stage, with the exception of primitive apterygote insects such as silverfish, which continue to moult and grow after they become sexually mature. Moulting ceases to occur in the pterygote adult insect because the glands
C, Mango, I R, Odhiambo, R, Galun
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Ecdysone as A Hypocholesterolemic Agent
Archives Internationales de Physiologie et de Biochimie, 1969AbstractIt is well-known from the previous findings (Tomkins et al., 1953; Bucher et al., 1959 and 1960) that cholesterol inhibits its own synthesis by a negative feed-back control. Since then, bile salts and their conjugates in the enterohepatic circulation have been shown to be implicated in the regulation of cholesterol synthesis by a double feed ...
P J, Lupien, C, Hinse, K D, Chaudhary
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Ecdysone Analog: Conversion to Alpha Ecdysone and 20-Hydroxyecdysone by an Insect
Science, 1969The tritium-labeled synthetic ecdysone analog Δ 7 -5β-cholestene-2β,3β,14α-triol-6-one terminated diapause when injected into diapausing tobacco hornworm pupae and was converted into tritium-labeled α-ecdysone and tritium-labeled 20-hydroxyecdysone.
J N, Kaplanis +3 more
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