Results 21 to 30 of about 23,839 (265)
Heterokairic Genes and the Eco‐Evo‐Devo of Timing [PDF]
Evol DevHeterokairic 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
Essential functions of mosquito ecdysone importers in development and reproduction
bioRxiv, 2021 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 ...
Lewis V. Hun +5 more
semanticscholar +1 more source
Open 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
Mapping molluscan endocrinology: a systematic and critical appraisal. [PDF]
Biol Rev Camb Philos SocABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Panagiotidis K +3 more
europepmc +2 more sources
Nuclear receptor DHR4 controls the timing of steroid hormone pulses during Drosophila development. [PDF]
PLoS 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
bioRxiv, 2020 Developmental studies revealed fundamental principles on how organ size and function is achieved, but less is known about organ adaptation to new physiological demands.
Lisa Zipper +4 more
semanticscholar +1 more source
Ecdysone acts through cortex glia to regulate sleep in Drosophila
eLife, 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
Egfr Signaling Is a Major Regulator of Ecdysone Biosynthesis in the Drosophila Prothoracic Gland.
Current Biology, 2020 Understanding the mechanisms that determine final body size of animals is a central question in biology. In animals with determinate growth, such as mammals or insects, the size at which the immature organism transforms into the adult defines the final ...
Josefa Cruz +2 more
semanticscholar +1 more source
PLoS 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
Resource Availability Modulates Gene Expression Across Life Stages in a Migratory Butterfly. [PDF]
Mol EcolABSTRACT Natural populations are in constant need of balancing resource allocation to compensate for seasonal environmental variation. In many insects, a well‐established trade‐off between migration and reproduction exists. While this trade‐off has been characterised phenotypically for decades, the underlying regulatory pathways are poorly understood ...
Shipilina D +8 more
europepmc +2 more sources