Results 21 to 30 of about 18,562 (160)

Understanding molt control switches: Transcriptomic and expression analysis of the genes involved in ecdysteroidogenesis and cholesterol uptake pathways in the Y-organ of the blue crab, Callinectes sapidus.

PLoS ONE, 2021
The crustacean molting process is regulated by an interplay of hormones produced by the eyestalk ganglia and Y-organs (YO). Molt-inhibiting hormone and crustacean hyperglycemic hormone released by the sinus gland of the eyestalk ganglia (EG) inhibit the ...
Elena Legrand, Tsvetan Bachvaroff, Tracey B Schock, J Sook Chung   +3 more
doaj   +1 more source

Compounds Inhibiting Noppera-bo, a Glutathione S-transferase Involved in Insect Ecdysteroid Biosynthesis: Novel Insect Growth Regulators

Biomolecules, 2023
Glutathione S-transferases (GSTs) are conserved in a wide range of organisms, including insects. In 2014, an epsilon GST, known as Noppera-bo (Nobo), was shown to regulate the biosynthesis of ecdysteroid, the principal steroid hormone in insects. Studies
Kana Ebihara, Ryusuke Niwa
doaj   +1 more source

Ecdysteroids from the Stem Bark of Vitex doniana Sweet (Lamiaceae; ex. Verbenaceae): A Geographically Variable African Medicinal Species

Antibiotics, 2021
Vitex doniana Sweet is an African medicinal species that is prescribed as an aqueous bark extract to be applied topically or orally to achieve anti-infective outcomes. In select regions it is also taken orally as an antimalarial agent.
Musa I. Bunu, Derek T. Ndinteh, Jacinta R. Macdonald, Moses K. Langat, Sani M. Isyaka, Nicholas J. Sadgrove, Ingrid Melnikovova, Eloy Fernandez-Cusimamani   +7 more
doaj   +1 more source

Sex-specific expression profiles of ecdysteroid biosynthesis and ecdysone response genes in extreme sexual dimorphism of the mealybug Planococcus kraunhiae (Kuwana).

PLoS ONE, 2020
Insect molting hormone (ecdysteroids) and juvenile hormone regulate molting and metamorphic events in a variety of insect species. Mealybugs undergo sexually dimorphic metamorphosis: males develop into winged adults through non-feeding, pupa-like stages ...
Miyuki Muramatsu, Tomohiro Tsuji, Sayumi Tanaka, Takahiro Shiotsuki, Akiya Jouraku, Ken Miura, Isabelle Mifom Vea, Chieka Minakuchi   +7 more
doaj   +1 more source

Regulation of juvenile hormone and ecdysteroid analogues on the development of the predatory spider, Pardosa pseudoannulata, and its regulatory mechanisms

Ecotoxicology and Environmental Safety, 2022
Insecticides harm the beneficial organisms, such as predatory spiders, through direct killing or regulation of the development and reproduction. In this study, the bioassay showed that the treatment of juvenile hormone (JH) analogue fenoxycarb delayed ...
Zhiming Yang, Yong Wu, Yangyang Yan, Guangming Xu, Na Yu, Zewen Liu   +5 more
doaj   +1 more source

Insulin-like and IGF-like peptides in the silkmoth Bombyx mori: discovery, structure, secretion and function.

Frontiers in Physiology, 2013
A quarter of a century has passed since bombyxin, the first insulin-like peptide identified in insects, was discovered in the silkmoth Bombyx mori. During these years, bombyxin has been studied for its structure, genes, distribution, hemolymph titers ...
Akira eMizoguchi, Naoki eOkamoto
doaj   +1 more source

20-Hydroxyecdysone, from Plant Extracts to Clinical Use: Therapeutic Potential for the Treatment of Neuromuscular, Cardio-Metabolic and Respiratory Diseases

Biomedicines, 2021
There is growing interest in the pharmaceutical and medical applications of 20-hydroxyecdysone (20E), a polyhydroxylated steroid which naturally occurs in low but very significant amounts in invertebrates, where it has hormonal roles, and in certain ...
Laurence Dinan, Waly Dioh, Stanislas Veillet, Rene Lafont   +3 more
doaj   +1 more source

Mating-Induced Increase in Germline Stem Cells via the Neuroendocrine System in Female Drosophila. [PDF]

PLoS Genetics, 2016
Mating and gametogenesis are two essential components of animal reproduction. Gametogenesis must be modulated by the need for gametes, yet little is known of how mating, a process that utilizes gametes, may modulate the process of gametogenesis. Here, we
Tomotsune Ameku, Ryusuke Niwa
doaj   +1 more source

Signaling Pathways That Regulate the Crustacean Molting Gland

Frontiers in Endocrinology, 2021
A pair of Y-organs (YOs) are the molting glands of decapod crustaceans. They synthesize and secrete steroid molting hormones (ecdysteroids) and their activity is controlled by external and internal signals.
Donald L. Mykles, Donald L. Mykles
doaj   +1 more source

Novel Ecdysteroids fromSerratula wolffii [PDF]

The Scientific World Journal, 2012
Two new and one known ecdysteroids were identified in the methanolic extract of the roots ofSerratula wolffii. The new compounds isolated were ponasterone A-22-apioside (1) and 3-epi-shidasterone (3), together with the known 3-epi-22-deoxy-20-hydroxyecdysone (2).
Ványolós Attila, Béni Zoltán, Dékány Miklós, Simon András, Báthori Mária   +4 more
openaire   +3 more sources