Results 111 to 120 of about 2,318,785 (281)

The genome-wide transcriptional regulatory landscape of ecdysone in the silkworm

open access: yesEpigenetics & Chromatin, 2018
Background The silkworm, Bombyx mori, a typical representative of metamorphic insects, is of great agricultural and economic importance. The steroid hormone ecdysone (20-hydroxyecdysone, 20E) is the central regulator of insect developmental transitions ...
Dong Cheng   +7 more
doaj   +1 more source

TGF-β receptor levels regulate the specificity of signaling pathway activation and biological effects of TGF-β [PDF]

open access: yes, 2009
TGF-β is a pluripotent cytokine that mediates its effects through a receptor composed of TGF-β receptor type II (TGFBR2) and type I (TGFBR1). The TGF-β receptor can regulate Smad and nonSmad signaling pathways, which then ultimately dictate TGF-β's ...
Cress, Dean   +3 more
core   +3 more sources

Sex‐Specific Response to Predator Auditory Cues in Asian Corn Borer (Ostrinia furnacalis)

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
Females downregulate more DEGs; males upregulate under predation risk. Males boost ecdysteroid; females reduce fecundity under bat ultrasound. Female O. furnacalis reacted more strongly to auditory cues of bats than males. ABSTRACT Predation risk has profound effects on prey from phenotype to gene expression.
Li Wang   +8 more
wiley   +1 more source

Autophagy occurs upstream or parallel to the apoptosome during histolytic cell death [PDF]

open access: yes, 2006
Histolysis refers to a widespread disintegration of tissues that is morphologically distinct from apoptosis and often associated with the stimulation of autophagy. Here, we establish that a component of the apoptosome, and pivotal regulator of apoptosis,
Abrams, John M.   +11 more
core   +1 more source

Spatiotemporal Crosstalk Between Oocyte and the Microenvironment Governs Preovulatory Follicle Aging

open access: yesAging Cell, Volume 25, Issue 1, January 2026.
Preovulatory follicle aging is characterized by two distinct phases—early oocyte protective and late degenerative phases. The degenerative phase involves a positive feedback loop between oocyte mitochondrial dysfunction mediated by a mitochondrial‐localized microprotein PIGBOS, and granulosa cell functional decline through a circular RNA circdlg1 ...
Xin Yi Koh   +7 more
wiley   +1 more source

Ecdysone receptor homologs from mollusks, leeches and a polychaete worm

open access: yesFEBS Letters, 2010
The genomes of the mollusk Lottia gigantea, the leech Helobdella robusta and the polychaete worm Capitella teleta each have a gene encoding an ecdysone receptor homolog. Publicly available genomic and EST sequences also contain evidence for ecdysone receptors in the seahare Aplysia californica, the bobtail squid Euprymna scolopes and the medicinal ...
Laguerre, Michel, Veenstra, Jan A.
openaire   +2 more sources

Steroid Receptor Isoform Expression in Drosophila Nociceptor Neurons Is Required for Normal Dendritic Arbor and Sensitivity. [PDF]

open access: yesPLoS ONE, 2015
Steroid hormones organize many aspects of development, including that of the nervous system. Steroids also play neuromodulatory and other activational roles, including regulation of sensitivity to painful stimuli in mammals.
Aidan L McParland   +4 more
doaj   +1 more source

Roles of mechanistic target of rapamycin and transforming growth factor-B signaling in the molting gland (Y-organ) of the blackback land crab, Gecarcinus lateralis [PDF]

open access: yes, 2016
Molting in decapod crustaceans is controlled by molt-inhibiting hormone (MIH), an eyestalk neuropeptide that suppresses production of ecdysteroids by a pair of molting glands (Y-organs or YOs). Eyestalk ablation (ESA) activates the YOs, which hypertrophy
Abuhagr, Ali M.   +5 more
core   +2 more sources

Metabolism of Epoxidised Withanolides by a Generalist and a Specialist Insect Species

open access: yesChemistryOpen, Volume 14, Issue 12, December 2025.
Larvae of Heliothis (Chloridea) virescence and subflexa have the ability to convert the epoxidized terpenoid 4β‐hydroxywithanolide E (4BHWE) to withanolide S. The conversion is found by feeding the larvae an artificial diet supplemented with 13C‐labeled 4BHWE.
Marie Pauline Sell   +4 more
wiley   +1 more source

Activation of the IκB Kinase Complex and Nuclear Factor-κB Contributes to Mutant Huntingtin Neurotoxicity [PDF]

open access: yes, 2004
Transcriptional dysregulation by mutant huntingtin (Htt) protein has been implicated in the pathogenesis of Huntington's disease (HD). We find that cultured cells expressing mutant Htt and striatal cells from HD transgenic mice have elevated nuclear ...
Khoshnan, Ali   +5 more
core   +1 more source

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