Results 111 to 120 of about 22,021 (216)

Effects of 17α‐Ethinylestradiol on Development and Gonadal Differentiation in the Estuarine Mummichog, Fundulus heteroclitus

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 2, Page 148-161, March 2026.
ABSTRACT In fish, sex determination and gonadal development are controlled by various genetic and environmental factors. In this study, experiments were conducted on the estuarine mummichog (Fundulus heteroclitus) to investigate gonadal differentiation following exposure to the synthetic estrogen, 17α‐ethinylestradiol (EE2).
Ibrahim Chehade, Carly Sing‐Judge, Emily Corrigan, Andrea Lister, Glen Van Der Kraak, Deborah MacLatchy   +5 more
wiley   +1 more source

Minimizing Stress in White Sharks: Non-Invasive Epidermal Biopsies for Isotopic and Vitellogenin Analyses

Biology
The great white shark (Carcharodon carcharias), a keystone predator vital to marine ecosystem stability, is increasingly exposed to anthropogenic threats, including endocrine-disrupting chemicals (EDCs).
Guia Consales, Tommaso Campani, Agata Di Noi, Marco Garofalo, Eduardo Di Marcantonio, Francesca Romana Reinero, Silvia Casini, Luigi Dallai, Emilio Sperone, Letizia Marsili, Primo Micarelli   +10 more
doaj   +1 more source

Development of freshwater prawn (Macrobrachium rosenbergii) seed production and culture technology in the Mekong Delta Region of Vietnam: A review of the JIRCAS Project at Cantho University. [PDF]

, 2004
The Mekong Delta of Vietnam is a region rich in aquatic resources having high potential for aquaculture development. Inland aquaculture in the Mekong Delta has greatly increased since the last decade.
Hai, Tran Ngoc, Hien, Tra Thi Thanh, Ogata, Hiroshi Y., Phuong, Nguyen Thanh, Tuan, Nguyen Anh, Wilder, Marcy N.   +5 more
core   +1 more source

Influence of the lunar cycle on plasma melatonin, vitellogenin and sex steroids rhythms in Senegal sole, Solea senegalensis [PDF]

, 2010
24 p., il., y bibliografíaThe effect of the moon light cycle on plasma melatonin rhythms was examined in Senegal sole (Solea senegalensis) exposed to natural outdoor or artificial indoor lighting conditions.
Duncan, Neil, Mañanós, Evaristo L., Oliveira, Catarina R., Pousão-Ferreira, P., Sánchez-Vázquez, F. J.   +4 more
core   +1 more source

Vitellogenin synthesis in the avian liver. Vitellogenin is the precursor of the egg yolk phosphoproteins

Journal of Biological Chemistry, 1975
Administration of estrogen to roosters induces the synthesis of egg yolk phosphoproteins in the liver. We have demonstrated that these proteins are synthesized in the form of a large precursor, vitellogenin, and that vitellogenin is the only phosphoprotein found in the plasma of the estrogen-treated rooster. Vitellogenin is cleaved to form the egg yolk
R G, Deeley, D P, Mullinix, W, Wetekam, H M, Kronenberg, M, Meyers, J D, Eldridge, R F, Goldberger   +6 more
openaire   +2 more sources

Molecular and Endocrine Regulation of Ovarian Maturation in the Black Tiger Prawn (Penaeus monodon) and Associated Challenges in Its Aquaculture

Reviews in Aquaculture, Volume 18, Issue 2, March 2026.
ABSTRACT Over the past four decades, substantial research has investigated the regulation of ovarian maturation and spawning in the black tiger prawn (Penaeus monodon). In this species, female reproduction is strongly suppressed by gonad‐inhibiting hormone (GIH) released from the eyestalk, making eyestalk ablation (ESA) the most widely adopted spawning‐
Gourab Chowdhury, Josephine Nocillado, Abigail Elizur, Scott F. Cummins, Tomer Ventura   +4 more
wiley   +1 more source

vitellogenin

Citation: 'vitellogenin' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.11375 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Updated peer review of the pesticide risk assessment of the active substance clodinafop (variant evaluated clodinafop‐propargyl)

EFSA Journal, Volume 24, Issue 3, March 2026.
Abstract The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, Greece, and co‐rapporteur Member State, Germany, for the pesticide active substance clodinafop‐propargyl are reported. The context of the peer review was
European Food Safety Authority (EFSA), Fernando Álvarez, Maria Arena, Domenica Auteri, Sofia Batista Leite, Marco Binaglia, Anna Federica Castoldi, Arianna Chiusolo, Angelo Colagiorgi, Mathilde Colas, Federica Crivellente, Chloe De Lentdecker, Isabella De Magistris, Mark Egsmose, Gabriella Fait, Franco Ferilli, German Giner Santonja, Varvara Gouliarmou, Katrin Halling, Alessio Ippolito, Frederique Istace, Dimitra Kardassi, Aude Kienzler, Anna Lanzoni, Roberto Lava, Renata Leuschner, Alberto Linguadoca, Mariano Lopez Romano, Jochem Louisse, Christopher Lythgo, Oriol Magrans, Iris Mangas, Andrea Mioč, Ileana Miron, Tunde Molnar, Laura Padovani, Vincenzo Padricello, Martina Panzarea, Juan Manuel Parra Morte, Simone Rizzuto, Miguel Santos, Rositsa Serafimova, Rachel Sharp, Csaba Szentes, Anne Theobald, Manuela Tiramani, Giorgia Vianello, Laura Villamar‐Bouza   +47 more
wiley   +1 more source

Ascorbic Acid and Graphene Oxide Exposure in the Model Organism Acheta domesticus Can Change the Reproduction Potential

Molecules
The use of nanoparticles in the industry carries the risk of their release into the environment. Based on the presumption that the primary graphene oxide (GO) toxicity mechanism is reactive oxygen species production in the cell, the question arises as to
Barbara Flasz, Monika Tarnawska, Andrzej Kędziorski, Łukasz Napora-Rutkowski, Joanna Szczygieł, Łukasz Gajda, Natalia Nowak, Maria Augustyniak   +7 more
doaj   +1 more source