Results 61 to 70 of about 11,970 (214)
Frontiers in Physiology, 2017 Ovarian development plays an important role in the life history of insects and is crucial for control of the insect population. The metamorphosis of an insect is precisely regulated by the interaction of the juvenile hormone and ecdysone.
Jianru Jiang, Yili Xu, Xinda Lin
doaj +1 more source
Disease Models & Mechanisms, 2020 Aldosterone is produced by the mammalian adrenal cortex to modulate blood pressure and fluid balance; however, excessive, prolonged aldosterone promotes fibrosis and kidney failure.
Wenjing Zheng, Karen Ocorr, Marc Tatar
doaj +1 more source
Ecdysone Oxidase: Reaction and Specificity [PDF]
European Journal of Biochemistry, 1978 Ecdysone oxidase oxidizes 3‐hydroxysteroids of the ecdysteroid type irreversibly to 3‐dehydro derivatives. The hydrogen of the steroid is transferred by the enzyme to oxygen which is reduced to hydrogen peroxide. Ecdysone oxidase is relatively specific for ecdysone and ecdysterone. Apparent Michaelis constants for these two physiological substrates are
J, Koolman, P, Karlson
openaire +2 more sources
Defecation in preparation for ecdysis drives microplastic clearance in cricket nymphs
Physiological Entomology, EarlyView.In preparation for ecdysis, cricket nymphs cease feeding and gradually clear their gut contents via frass production, which removes most ingested MPs from their digestive tract. Following exoskeletal moulting, the foregut lining, including any remaining MPs, is shed and excreted alongside frass approximately 6 h later.
Jennie E. Mills +3 more
wiley +1 more source
Ecdysone Control of Developmental Transitions:Lessons from Drosophila Research
, 2013 The steroid hormone ecdysone is the central regulator of insect developmental transitions. Recent new advances in our understanding of ecdysone action have relied heavily on the application of Drosophila melanogaster molecular genetic tools to study ...
Rewitz, Kim +2 more
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Polyphenism Through RNA Chemical Modifications
Molecular Ecology, Volume 35, Issue 19, October 2026.ABSTRACT Polyphenism, the capacity of a single genotype to produce discrete phenotypes in response to environmental cues, has long served as a model for understanding developmental plasticity. While classical studies have highlighted hormonal signalling and transcription‐factor‐driven gene regulatory networks that mediate these environmentally induced ...
Ralf Schneider, Ehsan Pashay Ahi
wiley +1 more source
INVESTIGATING THE MOLECULAR CONTROL OF ECDYSONE RESPONSE GENE, E74, IN THE DROSOPHILA OVARY.
, 2023 Oogenesis is the process by which an egg develops from precursor cells in the ovary. This process has been widely studied\; however, many of the molecular mechanisms that regulate oocyte development and growth remain unclear.
Davenport, Lindsay L +1 more
core
Bicistronic Expression of Ecdysone-Inducible Receptors in Mammalian Cells
BioTechniques, 2001 The recent emergence of inducible expression systems for mammalian cells has greatly facilitated the in vivo analysis of gene function. The ecdysone-inducible expression system is particularly attractive because of (i) extremely low basal expression and ...
Denise L. Wyborski +2 more
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Archives of Insect Biochemistry and Physiology, Volume 123, Issue 1, September 2026.Aphids efficiently ingest dsRNA, which persists in the midgut but is rapidly degraded by aphid nucleases when unprotected. Chitosan and LDH‐based formulations improve dsRNA stability, triggering RNAi activation. Despite this protection, gene knockdown remains variable, though the RNAi machinery is consistently activated.
Lisa Merkel +4 more
wiley +1 more source
Translational control by Belle regulates E74A-dependent ecdysone-triggered responses.
, 2012 A model of how Belle protein regulates a subset of ecdysone-triggered transcriptional responses. E74A protein has two functions: to induce expression of E74A-dependent target genes and to inhibit its own ecdysone-induced transcription.
Robert J. Ihry (116531) +2 more
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