Results 21 to 30 of about 10,510 (219)

Nuclear receptor DHR4 controls the timing of steroid hormone pulses during Drosophila development. [PDF]

open access: yesPLoS Biology, 2011
In insects, precisely timed periodic pulses of the molting hormone ecdysone control major developmental transitions such as molts and metamorphosis. The synthesis and release of ecdysone, a steroid hormone, is itself controlled by PTTH (prothoracicotopic
Qiuxiang Ou   +2 more
doaj   +1 more source

Network pharmacology combined with molecular docking to explore the anti-osteoporosis mechanisms of β-ecdysone derived from medicinal plants

open access: yesOpen Chemistry, 2022
β-Ecdysone is a phytosteroid derived from multifarious medicinal plants, such as Achyranthes root (Achyranthes bidentata) and Tinospora cordifolia, possessing the potential anti-osteoporosis effect.
Zeng Bin   +3 more
doaj   +1 more source

Essential functions of mosquito ecdysone importers in development and reproduction [PDF]

open access: yes, 2022
The primary insect steroid hormone ecdysone requires a membrane transporter to enter its target cells. Although an organic anion-transporting polypeptide (OATP) named Ecdysone Importer (EcI) serves this role in the fruit fly Drosophila melanogaster and ...
Bittar, Riyan   +6 more
core   +1 more source

Identification of Ecdysone Hormone Receptor Agonists as a Therapeutic Approach for Treating Filarial Infections. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2016
BACKGROUND:A homologue of the ecdysone receptor has previously been identified in human filarial parasites. As the ecdysone receptor is not found in vertebrates, it and the regulatory pathways it controls represent attractive potential chemotherapeutic ...
Amruta S Mhashilkar   +8 more
doaj   +1 more source

Heterokairic Genes and the Eco‐Evo‐Devo of Timing [PDF]

open access: yesEvol Dev
Heterokairic genes as the bridge (Heterokairic Pathways?): Heterokairic genes are heterochronic regulators whose activity is modulated by environmental conditions. External cues (e.g., temperature, nutrition, oxygen, density: yellow box) are sensed (yellow arrows) and converted into endocrine and metabolic signals (purple box and arrow into fish's ...
Lofeu L, Ahi E.
europepmc   +2 more sources

Ecdysone acts through cortex glia to regulate sleep in Drosophila

open access: yeseLife, 2023
Steroid hormones are attractive candidates for transmitting long-range signals to affect behavior. These lipid-soluble molecules derived from dietary cholesterol easily penetrate the brain and act through nuclear hormone receptors (NHRs) that function as
Yongjun Li   +4 more
doaj   +1 more source

Co-option of immune effectors by the hormonal signalling system triggering metamorphosis in Drosophila melanogaster.

open access: yesPLoS Genetics, 2021
Insect metamorphosis is triggered by the production, secretion and degradation of 20-hydroxyecdysone (ecdysone). In addition to its role in developmental regulation, increasing evidence suggests that ecdysone is involved in innate immunity processes ...
Catarina Nunes   +2 more
doaj   +1 more source

Cyromazine Effects the Reproduction of Drosophila by Decreasing the Number of Germ Cells in the Female Adult Ovary

open access: yesInsects, 2022
In the present study, we observed a 58% decrease in the fecundity of Drosophila melanogaster, after treatment with the cyromazine. To further elucidate the effects of cyromazine on reproduction, we counted the number of both germline stem cells (GSCs ...
Muhammad Zaryab Khalid   +4 more
doaj   +1 more source

Spider Hemocyanin Binds Ecdysone and 20-OH-Ecdysone [PDF]

open access: yesJournal of Biological Chemistry, 1999
Fluorescence quenching studies and binding experiments with [(3)H]ecdysone reveal that the respiratory protein, hemocyanin, of the tarantula Eurypelma californicum binds ecdysone. The binding constant for ecdysone ranges between 0.5 and 5 mM, indicating a low affinity binding.
E, Jaenicke, R, Föll, H, Decker
openaire   +2 more sources

The ecdysone receptor regulates several key physiological factors in Anopheles funestus

open access: yesMalaria Journal, 2022
Background Malaria is a devastating disease, transmitted by female Anopheles mosquitoes infected with Plasmodium parasites. Current insecticide-based strategies exist to control the spread of malaria by targeting vectors.
Surina Maharaj   +6 more
doaj   +1 more source

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