Results 61 to 70 of about 7,003 (235)

Increased accuracy of ligand sensing by receptor diffusion on cell surface [PDF]

Physical Review E 82, 041902 (2010), 2010
The physical limit with which a cell senses external ligand concentration corresponds to the perfect absorber, where all ligand particles are absorbed and overcounting of same ligand particles does not occur. Here we analyze how the lateral diffusion of receptors on the cell membrane affects the accuracy of sensing ligand concentration.
arxiv   +1 more source

Bridging the Gap Between Human Toxicology and Ecotoxicology Under One Health Perspective by a Cross‐Species Adverse Outcome Pathway Network for Reproductive Toxicity

Environmental Toxicology and Chemistry, EarlyView.
Cross‐species extrapolation of adverse outcome pathway network on reproductive toxicity under the One Health perspective using new approach methodologies. AOP = adverse outcome pathway. Abstract Although ecotoxicological and toxicological risk assessments are performed separately from each other, recent efforts have been made in both disciplines to ...
Elizabeth Dufourcq Sekatcheff, Jaeseong Jeong, Jinhee Choi   +2 more
wiley   +1 more source

Mechanisms of transcriptional regulation of ecdysone response

Вавиловский журнал генетики и селекции, 2019
The mechanisms of ecdysone-dependent expression have been studied for many decades. Initially, the activation of individual genes under the influence of ecdysone was studied on the model of polythene chromosomes from salivary glands of Drosophila ...
M. Yu. Mazina, N. E. Vorobyeva
doaj   +1 more source

Long‐term impact of exposure to Royal Guard, a pyriproxyfen‐based bed net, on pyrethroid‐resistant malaria vectors from Cameroon using DNA‐based metabolic resistance markers

Pest Management Science, Volume 81, Issue 4, Page 2165-2180, April 2025.
We used recently detected P450 DNA‐based markers of pyrethroid resistance in both Anopheles funestus and Anopheles gambiae to demonstrate that although pyrethroid‐resistant mosquitoes have higher ability to survive and live longer after exposure to Royal Guard, this net significantly affects their lifespan, blood feeding ability and interestingly ...
Emilie S Ngongang‐Yipmo, Magellan Tchouakui, Benjamin D Menze, Riccado F Tiomela, Derrick Fofie, Vanessa B Ngannang‐Fezeu, Jean L Mugenzi, Flobert Njiokou, Charles S Wondji   +8 more
wiley   +1 more source

The impact of high density receptor clusters on VEGF signaling [PDF]

EPTCS 125, 2013, pp. 37-52, 2013
Vascular endothelial growth factor (VEGF) signaling is involved in the process of blood vessel development and maintenance. Signaling is initiated by binding of the bivalent VEGF ligand to the membrane-bound receptors (VEGFR), which in turn stimulates receptor dimerization.
arxiv   +1 more source

Molecular surveillance of resistance mutations in invasive populations of Spodoptera frugiperda in Europe, for evidence‐based pest control

Pest Management Science, EarlyView.
All Spodoptera frugiperda were rice strain with two haplotypes, likely from a common mixed source. ABCC2 and Ace‐1 mutations, conferring resistance to Bacillus thuringiensis and organophosphates/carbamates, respectively, were detected. Abstract BACKGROUND The invasive fall armyworm (Spodoptera frugiperda, FAW), a highly destructive pest affecting more ...
Konstantinos Mavridis, Vasiliki Evangelou, Alexandra M Grigoriadou, Dimitrios P Papachristos, John Vontas   +4 more
wiley   +1 more source

Differential gene expression in Chorthippus parallelus (Zetterstedt, 1821) (Orthoptera: Acrididae: Gomphocerinae) induced by Wolbachia infection

Insect Science, EarlyView.
Distinct lineages of the grasshopper Chorthippus parallelus (Orthoptera: Acrididae) form a well‐known hybrid zone (HZ) in the Pyrenees mountain range; the Iberian endemism C. p. erythropus (Cpe) and the subspecies C. p. parallelus, (Cpp) widely distributed throughout the rest of Europe. Both subspecies differ in diverse traits, including the strains of
Patricia Jiménez‐Florido, Mónica Aquilino, David Buckley, José L. Bella, Rosario Planelló   +4 more
wiley   +1 more source

N(alpha)-acetyltransferase 40-mediated histone acetylation plays an important role in ecdysone regulation of metamorphosis in the red flour beetle, Tribolium castaneum

Communications Biology
Histone acetylation, a crucial epigenetic modification, is governed by histone acetyltransferases (HATs), that regulate many biological processes. Functions of HATs in insects are not well understood.
Sharath Chandra Gaddelapati, Smitha George, Anilkumar Moola, Karthi Sengodan, Subba Reddy Palli   +4 more
doaj   +1 more source

New reporter gene assays for detecting natural and synthetic molting hormone agonists using yeasts expressing ecdysone receptors of various insects

FEBS Open Bio, 2017
Synthetic nonsteroidal ecdysone agonists, a class of insect growth regulators (IGRs), target the ecdysone receptor (EcR), which forms a heterodimer with ultraspiracle (USP) to transactivate ecdysone response genes.
Sayoko Ito‐Harashima, Mai Matsuura, Masanobu Kawanishi, Yoshiaki Nakagawa, Takashi Yagi   +4 more
doaj   +1 more source

Dehydration triggers ecdysone-mediated recognition-protein priming and elevated anti-bacterial immune responses in Drosophila Malpighian tubule renal cells

BMC Biology, 2018
Background Drosophila is a powerful model for the study of factors modulating innate immunity. This study examines the effect of water-loss dehydration on innate immune responsiveness in the Drosophila renal system (Malpighian tubules; MTs), and how this
Wenjing Zheng, Florentina Rus, Ana Hernandez, Ping Kang, William Goldman, Neal Silverman, Marc Tatar   +6 more
doaj   +1 more source