Results 21 to 30 of about 1,843 (174)

Toxicity of methoprene as assessed by the use of a model microorganism [PDF]

Toxicology in Vitro, 2005
Methoprene is an insect juvenile growth hormone mimic, commonly used as a pesticide. Although widely used for the control of several pests, toxic effects on organisms of different phyla have been reported. These events triggered studies to clarify the mechanisms of toxicity of this insecticide putatively involved in ecological issues.
Monteiro, J. P., Jurado, A. S., Moreno, A. J. M., Madeira, V. M. C.   +3 more
openaire   +3 more sources

Susceptibilidade do besouro rola-bosta africano a reguladores de crescimento de insetos Susceptibility of African dung beetle to insect growth regulators

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2009
Verificou-se a ação dos reguladores de crescimento de insetos (IGR), diflubenzuron e methoprene, sobre o besouro rola-bosta africano, Digitonthophagus gazella (Fabricius), um inimigo natural da mosca-dos-chifres, Haematobia irritans irritans (Linnaeus ...
L.N. Domingues, J. Mendes
doaj   +1 more source

Thermal Behaviour, Biological Activity and Conformational Study of a [Methoprene/β-Cyclodextrin] Complex in a Smoke Generating Formulation

Molecules, 2005
Methoprene, an insect growth regulator, was complexed with β-cyclodextrin, yielding a stable inclusion complex. TGA, X-ray powder diffraction and conformational analysis have been used to confirm the nature of this inclusion complex.
Eduardo Zerba, Hector Masuh, Paola González Audino   +2 more
doaj   +1 more source

A randomized, controlled field study to assess the efficacy and safety of lotilaner flavored chewable tablets (Credelio™ CAT) in eliminating fleas in client-owned cats in the USA

Parasites & Vectors, 2021
Background Studies show that the novel isoxazoline, lotilaner (Credelio™ CAT; Elanco Animal Health), which is administered orally to cats, provides rapid and sustained flea kill for least 1 month following administration with a wide safety margin.
Kimberly Chappell, Tandy Paarlberg, Wolfgang Seewald, Daniela Karadzovska, Steve Nanchen   +4 more
doaj   +1 more source

How Can Termites Achieve Their Unparalleled Postembryonic Developmental Plasticity? A Test for the Role of Intermolt-Specific High Juvenile Hormone Titers

Frontiers in Ecology and Evolution, 2021
Termites are “social cockroaches” and amongst the most phenotypically plastic insects. The different castes (i.e., two types of reproductives, workers, and soldiers) within termite societies are all encoded by a single genome and present the result of ...
Judith Korb, Carolin Greiner, Marion Foget, Adrian Geiler   +3 more
doaj   +1 more source

Role of Methoprene-tolerant in the regulation of oogenesis in Dipetalogaster maxima

Scientific Reports, 2022
AbstractJuvenile hormone (JH) signalling, via its receptor Methoprene-tolerant (Met), controls metamorphosis and reproduction in insects. Met belongs to a superfamily of transcription factors containing the basic Helix Loop Helix (bHLH) and Per Arnt Sim (PAS) domains.
Fabián O. Ramos, Marcela Nouzová, Leonardo L. Fruttero, Jimena Leyria, Rodrigo Ligabue‐Braun, Fernando G. Noriega, Lilián E. Canavoso   +6 more
openaire   +4 more sources

Simulation Study on Long-Lasting Effectiveness of S-Methoprene on Tribolium Species and Activity of Detoxification Enzyme

Liang you shipin ke-ji, 2023
In view of the prevailing insecticide resistance and increasing safety and health concerns, there is an urgent need to develop effective and environmentally friendly methods to control stored-product pests.
LI Yan-yu, HU Tie-yuan, JIANG Xue, XIE Bing-bing, WANG Sen-shan, SONG Li-wen, ZHANG Hong-qing, MU Hai-liang, WANG Ming-liang   +8 more
doaj   +1 more source

Ligand-binding properties of a juvenile hormone receptor, Methoprene-tolerant [PDF]

Proceedings of the National Academy of Sciences, 2011
Juvenile hormone (JH) is a sesquiterpenoid of vital importance for insect development, yet the molecular basis of JH signaling remains obscure, mainly because a bona fide JH receptor has not been identified. Mounting evidence points to the basic helix–loop–helix (bHLH)/Per-Arnt-Sim (PAS) domain protein Methoprene-tolerant (Met) as the best JH receptor ...
Charles, Jean-Philippe, Iwema, Thomas, Epa, V Chandana, Takaki, Keiko, Rynes, Jan, Jindra, Marek   +5 more
openaire   +6 more sources

Spodoptera frugiperda Sf9 cells as a model system to investigate the role of detoxification gene expression in response to xenobiotics

Current Research in Insect Science, 2022
Spodoptera frugiperda (fall armyworm) is a highly destructive invasive pest that feeds on numerous crops including maize and rice. It has developed sophisticated mechanisms to detoxify xenobiotics such as secondary plant metabolites as well as manmade ...
Dries Amezian, Sonja Mehlhorn, Calypso Vacher-Chicane, Ralf Nauen, Gaëlle Le Goff   +4 more
doaj   +1 more source

Analytical Method of Methoprene in Foods Using HPLC

Journal of the Food Hygienic Society of Japan (Shokuhin Eiseigaku Zasshi), 2006
We studied the determination of methoprene in foods by high-performance liquid chromatography (HPLC). The sample was extracted with acetonitrile and the extract was salted out by adding sodium chloride, allowing the acetonitrile layer to separate. The acetonitrile solution was washed with hexane saturated with acetonitrile, cleaned up on a Florisil ...
SAITO, Isao, UENO, Eiji, OSHIMA, Harumi, MATSUMOTO, Hiroshi, SASAKI, Kumiko, MAITANI, Tamio   +5 more
openaire   +3 more sources