Results 21 to 30 of about 8,028 (164)

Increased insulin/insulin growth factor signaling advances the onset of metamorphosis in Drosophila. [PDF]

open access: yesPLoS ONE, 2009
Mechanisms by which attainment of specific body sizes trigger developmental transitions to adulthood (e.g. puberty or metamorphosis) are incompletely understood.
Magdalena A Walkiewicz, Michael Stern
doaj   +1 more source

Nutritional control of body size through FoxO-Ultraspiracle mediated ecdysone biosynthesis

open access: yeseLife, 2014
Despite their fundamental importance for body size regulation, the mechanisms that stop growth are poorly understood. In Drosophila melanogaster, growth ceases in response to a peak of the molting hormone ecdysone that coincides with a nutrition ...
Takashi Koyama   +4 more
doaj   +1 more source

EcR recruits dMi-2 and increases efficiency of dMi-2-mediated remodelling to constrain transcription of hormone-regulated genes

open access: yesNature Communications, 2017
InDrosophila, ecdysone-regulated genes are bound by a heterodimer of ecdysone receptor (EcR) and Ultraspiracle. Here, the authors provide evidence of a non-canonical complex containing EcR and the nucleosome remodeller dMi-2 that limits transcription of ...
Judith Kreher   +10 more
doaj   +1 more source

Effect of precocene II, ecdysone and juvenile Hormone on the glicogen concentration in pupae of Stomocys calcitram (Diptera muscidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1988
Third instar larvae of Stomoxys calcitrans (L.) were treated with precocene II, ecdysone and juvenile hormone. The larvae were allowed to develop until pupation and when it occurred, determination of glycogen levels was assayed.
M. L. M. Garcia   +2 more
doaj   +1 more source

Coordinated regulation of niche and stem cell precursors by hormonal signaling. [PDF]

open access: yesPLoS Biology, 2011
Stem cells and their niches constitute units that act cooperatively to achieve adult body homeostasis. How such units form and whether stem cell and niche precursors might be coordinated already during organogenesis are unknown.
Dana Gancz, Tamar Lengil, Lilach Gilboa
doaj   +1 more source

The steroid-hormone ecdysone coordinates parallel pupariation neuromotor and morphogenetic subprograms via epidermis-to-neuron Dilp8-Lgr3 signal induction

open access: yesNature Communications, 2021
Pupariation in Drosophila is triggered by the steroid-hormone ecdysone and requires coordination between associated behavioral and body-reshaping motor subprograms.
Fabiana Heredia   +19 more
doaj   +1 more source

Deep sequencing of the prothoracic gland transcriptome reveals new players in insect ecdysteroidogenesis. [PDF]

open access: yesPLoS ONE, 2017
Ecdysteroids are steroid hormones that induce molting and determine developmental timing in arthropods. In insect larva, the prothoracic gland (PG) is a major organ for ecdysone synthesis and release.
Takayoshi Nakaoka   +8 more
doaj   +1 more source

Effects of methoxyfenozide on ecdysone receptor complex expression in larval Asian gypsy moth

open access: yesOpen Life Sciences, 2015
As a target of insect growth regulators, the ecdysone receptor complex binds ecdysone agonists to regulate gene transcription, development, and growth.
Wu Shao-ping   +6 more
doaj   +1 more source

Interactions of ultraspiracle with ecdysone receptor in the transduction of ecdysone‐ and juvenile hormone‐signaling [PDF]

open access: yesThe FEBS Journal, 2005
Analyses of integration of two‐hormone signaling through the vertebrate nuclear hormone receptors, for which the retinoid X receptor is one partner, have generated a number of mechanistic models, including those described as ‘subordination’ models wherein ligand‐activation of one partner is subordinate to the liganded state of the other partner ...
Fang, Fang   +3 more
openaire   +2 more sources

The steroid hormone ecdysone regulates growth rate in response to oxygen availability

open access: yesScientific Reports, 2022
In almost all animals, physiologically low oxygen (hypoxia) during development slows growth and reduces adult body size. The developmental mechanisms that determine growth under hypoxic conditions are, however, poorly understood.
George P. Kapali   +4 more
doaj   +1 more source

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