Results 91 to 100 of about 14,789 (259)
Ausscheidung von Ecdyson bei Insekten
Zeitschrift für Naturforschung B, 1965 Ecdyson, das Häutungshormon der Insekten, wurde bisher ausschließlich aus Puppen des Seidenspinners „Bombyx mori“ kristallisiert erhalten 1. Wir konnten nachweisen, daß Ecdyson ein Steroidhormon ist1, 2. Die Struktur des Hormons wurde in jüngster Zeit im wesentlichen geklärt 3-6.
Helmut Ammon +2 more
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Genetics, 2017 Ecdysteroids are steroid hormones that control many aspects of development and physiology. During larval development, ecdysone is synthesized in an endocrine organ called the prothoracic gland through a series of ecdysteroidogenic enzymes encoded by the ...
Outa Uryu +10 more
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Origin of the mechanism of phenotypic plasticity in satyrid butterfly eyespots
eLife, 2020 Plasticity is often regarded as a derived adaptation to help organisms survive in variable but predictable environments, however, we currently lack a rigorous, mechanistic examination of how plasticity evolves in a large comparative framework.
Shivam Bhardwaj +5 more
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Chemical Engineering Transactions, 2016 A growing number of technologies are being developed in order to produce different high added value products, such as phytochemicals, ethanol and other chemicals from biomass, representing an important trend that needs to be evaluated.
J. Albarelli +5 more
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Development of Ecdysone-Regulated Lentiviral Vectors
Molecular Therapy, 2005 We have engineered a lentivirus-based gene transfer system to achieve ecdysone-regulated transgene expression. The method combines the wide tropism of lentiviral vectors and the possibility of gene regulation by a small molecule with an excellent pharmacological profile. Using the hematopoietic tissue as a model, we transduced mouse progenitors with an
GALIMI, Francesco +6 more
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Drosophila model systems reveal intestinal stem cells as key players in aging
Annals of the New York Academy of Sciences, Volume 1547, Issue 1, Page 88-99, May 2025.In this review, we discuss the regulation of proliferation and differentiation of intestinal stem cells based on previous research findings, summarize studies on the signaling pathways that regulate these stem cell functions, and describe how aging phenotypes observed in intestinal stem cells due to aging and oxidative stress affect intestinal ...
Joung‐Sun Park +2 more
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Bab2 Functions as an Ecdysone-Responsive Transcriptional Repressor during Drosophila Development
Cell Reports, 2020 Summary: Drosophila development is governed by distinct ecdysone steroid pulses that initiate spatially and temporally defined gene expression programs. The translation of these signals into tissue-specific responses is crucial for metamorphosis, but the
Jianli Duan +7 more
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Bioassay of Human Tissues for Ecdysone.
Experimental Biology and Medicine, 1962 Brain(1), corpus allatum(2), and prothor-acic gland(3,4,5) of insects(6,7) have yielded respective active hormones on bioassay. Recently Kobayashi and co-workers(8) found cholesterol to be an active component in the brain of Bombyx. Schmialek(9) isolated farnesol and, with Wigglesworth(10), showed it to act in a manner similar to juvenile hormone ...
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Functional male accessory glands and fertility in Drosophila require novel ecdysone receptor
PLoS Genetics, 2017 In many insects, the accessory gland, a secretory tissue of the male reproductive system, is essential for male fertility. Male accessory gland is the major source of proteinaceous secretions, collectively called as seminal proteins (or accessory gland ...
Vandana Sharma +8 more
semanticscholar +1 more source
Memorias do Instituto Oswaldo Cruz, 2004 The effects of blood components, nerve-cord severance, and ecdysone therapy on the posterior midgut epithelial cells of 5th-instar Rhodnius prolixus nymphs 10 days after feeding were analyzed by transmission electron microscopy. Cutting the nerve-cord of
JM Albuquerque-Cunha +6 more
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