Results 61 to 70 of about 62,775,292 (207)

Evaluation of physiological and molecular tools to assess ovarian stages in the black tiger prawn (Penaeus monodon)

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Advancing knowledge of the molecular mechanisms governing vitellogenesis and spawning in the black tiger prawn, Penaeus monodon, requires an efficient method for identifying ovarian stages. Several physiological and molecular tools have been employed to define these stages in laboratory studies.
Gourab Chowdhury, Josephine Nocillado, Tianfang Wang, Abigail Elizur, Scott F. Cummins, Tomer Ventura   +5 more
wiley   +1 more source

Combined Use of Deep Eutectic Solvents, Macroporous Resins, and Preparative Liquid Chromatography for the Isolation and Purification of Flavonoids and 20-Hydroxyecdysone from Chenopodium quinoa Willd

, 2019
Deep eutectic solvents (DESs) were used in combination with macroporous resins to isolate and purify flavonoids and 20-hydroxyecdysone from Chenopodium quinoa Willd by preparative high-performance liquid chromatography (HPLC). The extraction performances
Xianchao Shang, Hongwei Wang, Jia Zeng, Peng Zhang, Yanlong Gu, Jia-Neng Tan   +5 more
core   +1 more source

Timing is everything: PTTH mediated DHR4 nucleocytoplasmic trafficking sets the tempo of Drosophila steroid production

Frontiers in Endocrinology, 2011
During development multicellular organisms must become sexually mature to reproduce. But what underlying developmental clock times this transition? Recent data shows that in fly larvae, nuclear-cytoplasmic trafficking of DHR4, a nuclear receptor, in ...
Kim F Rewitz, Michael B. O'Connor
doaj   +1 more source

The genomic response to 20-hydroxyecdysone at the onset of Drosophila metamorphosis [PDF]

Genome Biology, 2005
Abstract Background The steroid hormone 20-hydroxyecdysone (20E) triggers the major developmental transitions in Drosophila, including molting and metamorphosis, and provides a model system for defining the developmental and molecular mechanisms of steroid signaling.
Beckstead, Robert B, Lam, Geanette, Thummel, Carl S   +2 more
openaire   +2 more sources

From flower buds to bolls: how cotton reproductive structures shape boll weevil development, reproduction and survival

Pest Management Science, Volume 82, Issue 5, Page 4576-4584, May 2026.
Female boll weevils feeding on flower buds promote reproduction regardless of their immature diet, whereas boll feeding increases lipid reserves and lifespan, revealing a nutrition‐driven trade‐off that sustains survival and reproduction in tropical boll weevil populations.
Roberta Ramos Coelho, Guilherme Gomes Rolim, Franklin Magliano da Cunha, Valéria Wanderley‐Teixeira, José Dijair Antonino, Jorge Braz Torres   +5 more
wiley   +1 more source

MicroRNA‐375‐3p Targets Fatty Acid Synthase and Relish to Regulate Energy Allocation During Pupal Metamorphosis and Starvation

Advanced Science, Volume 13, Issue 20, 9 April 2026.
During pupal metamorphosis and starvation, elevated 20‐hydroxyecdysone (20E) and suppressed insulin trigger Forkhead box O (FOXO) nuclear translocation, enhancing miR‐375‐3p expression. This downregulates fatty acid synthase (FASN) and Relish, promoting lipid breakdown for energy while prioritizing antioxidant responses over immune functions to support
Peng Chen, Meiqi Cheng, Jianhui Wang, Jing Tang, Xiaoqiao Huang, Yusi Li, Huiling Zhou, Ling Zhang, Yi Dong, Chengjun Li, Bin Li   +10 more
wiley   +1 more source

20-Hydroxyecdysone Primes Innate Immune Responses That Limit Bacterial and Malarial Parasite Survival in Anopheles gambiae

mSphere, 2020
Blood feeding is an integral behavior of mosquitoes to acquire nutritional resources needed for reproduction. This requirement also enables mosquitoes to serve as efficient vectors to acquire and potentially transmit a multitude of mosquito-borne ...
Rebekah A. Reynolds, Hyeogsun Kwon, Ryan C. Smith   +2 more
doaj   +1 more source

Methods for Improving Settlement and Metamorphosis of Shelled Marine Mollusks in Aquaculture: A Review

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
Settlement and metamorphosis are key developmental hurdles in marine mollusk aquaculture. Environmental signals (such as biofilms, algae, and signals from conspecifics) and biochemical pathways (including nitric oxide, thyroid hormones, catecholamines, and GABA) regulate the transition of larvae into benthic juveniles. Combining ecological observations
Angelica R. Valdez, Mitchell P. Marabella, Jon‐Paul Bingham   +2 more
wiley   +1 more source

Mapping molluscan endocrinology: a systematic and critical appraisal

Biological Reviews, Volume 101, Issue 2, Page 970-1002, April 2026.
ABSTRACT 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 ...
Konstantinos Panagiotidis, Thomas H. Miller, Olwenn V. Martin, Alice Baynes   +3 more
wiley   +1 more source

Pharmacocinetics and metabolism of 20-Hydroxyecdysone in humans

, 2011
Ecdysteroide sind Steroidhormone, die in Arthropoden und im Pflanzenreich vorkommen. Sie werden vom Menschen in relevanter Menge über die Nahrung aufgenommen.
Brandt, Felix Wolfgang
core   +1 more source