Results 51 to 60 of about 2,192 (162)

In vitro study of the action of adipokinetic hormone in locusts.

Journal of Lipid Research, 1989
The in vitro study was performed in order to demonstrate the structural changes of lipophorin induced in vivo by the injection of adipokinetic hormone (AKH) into adult locusts.
H Chino, Y Kiyomoto, K Takahashi
doaj   +1 more source

Methoprene modifies adipokinetic hormone characteristics in the firebug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

European Journal of Entomology, 2010
In the present study the hypothesis that there is a feedback between juvenile hormone and adipokinetic hormones (AKHs) was investigated by topical application of the juvenoid methoprene on 9-day-old adult males of the firebug Pyrrhocoris apterus.
Dalibor KODRÍK, Glenda ALQUICER, Radomír SOCHA   +2 more
doaj   +1 more source

Neuropeptidergic Signaling in the American Lobster Homarus americanus: New Insights from High-Throughput Nucleotide Sequencing. [PDF]

PLoS ONE, 2015
Peptides are the largest and most diverse class of molecules used for neurochemical communication, playing key roles in the control of essentially all aspects of physiology and behavior.
Andrew E Christie, Megan Chi, Tess J Lameyer, Micah G Pascual, Devlin N Shea, Meredith E Stanhope, David J Schulz, Patsy S Dickinson   +7 more
doaj   +1 more source

Biological impact, oxidative stress and adipokinetic hormone activities of Agrotis ipsilon in response to bioinsecticides

Plant Protection Science, 2022
The use of biological control products enhances the reduction of harmful pressures on the environment caused by the use of conventional pesticides. Therefore, this study aims to evaluate the toxicity of eight bioinsecticides on the black cutworm Agrotis ...
Moataz A.M. Moustafa, Wael H. Elmenofy, Engy A. Osman, Nourhan A. El-Said, Mona Awad   +4 more
doaj   +1 more source

Hungry for Knowledge: Octopamine Signaling Regulates Hunger‐Enhanced Olfactory Learning

Advanced Science, Volume 13, Issue 12, 27 February 2026.
Researchers demonstrate that hunger state facilitates both aversive and appetitive olfactory learning. Two distinct octopamine signaling pathways are involved in aversive or appetitive memory formation in the hunger state. And, hunger state also facilitates the formation of both types of memories via an evolutionarily conserved norepinephrine (the ...
Huijuan Zhao, Guiyuan Shi, Ruixue Qin, Yinghao Sun, Wenbo Guo, Ruixia Shi, Minxian Peng, Jingxuan Yang, Jianjian Zhao, Qiuhan Liu, Jun Xiao, Ke Zhang, Qiang Liu, Wenxing Yang, He Liu   +14 more
wiley   +1 more source

Functional characterization of hypertrehalosemic hormone receptor in relation to hemolymph trehalose and to oxidative stress in the cockroach Blattella germanica

Frontiers in Endocrinology, 2012
Hypertrehalosemic hormone (HTH) is a peptide hormone that belongs to the AKH/RPCH (adipokinetic hormone/red pigment concentrating hormone) family, which exerts pleiotropic actions related to catabolic reaction and stress response.
Jia-Hsin eHuang, Xavier eBelles, How-Jing eLee   +2 more
doaj   +1 more source

Thermosensory TRPV Heterotetramers Drive Seasonal Polyphenism: Molecular Basis of CcIav/CcNan‐PKCα‐AKH/AKHR Signaling in Pear Psyllid Morph Transition

Advanced Science, Volume 12, Issue 45, December 4, 2025.
At 2 5 °C, thermal activation initiates: i) CcIav/CcNan heterotetramer assembly → Ca2⁺ influx; ii) CcPKCα phosphorylation → AKH signaling potentiation; iii) CcAKH1 binding to membrane‐localized CcAKHR → energy mobilization (lipid catabolism/glycogenolysis) and vitellogenin transport via follicular patency; iv) Oocyte maturation → summer‐form nymph ...
Jianying Li, Zhixian Zhang, Yilin Wang, Yue Yang, Jiarui Wang, Xueyi Ruan, Songdou Zhang   +6 more
wiley   +1 more source

Characterization of Triacylglycerol Dynamics and Lipid Metabolism in the Beetle Tribolium castaneum

Archives of Insect Biochemistry and Physiology, Volume 120, Issue 3, November 2025.
Tribolium castaneum larvae accumulate triacylglycerol (TAG) during development, while adults rapidly deplete reserves post‐emergence. Under starvation, beetles prioritize protein catabolism over lipid mobilization, despite increased expression of lipolysis genes, revealing stage‐specific metabolic adaptations in this model insect.
Marcelle Pessoa‐Nascimento, Luayni Lorena Fernandes Queiroz, Pamela Verdan Pimenta do Nascimento, Fernanda Almeida‐Oliveira, David Majerowicz   +4 more
wiley   +1 more source

Systemic corazonin signalling modulates stress responses and metabolism in Drosophila [PDF]

Open Biology, 2016
Stress triggers cellular and systemic reactions in organisms to restore homeostasis. For instance, metabolic stress, experienced during starvation, elicits a hormonal response that reallocates resources to enable food search and readjustment of ...
Olga I. Kubrak, Oleh V. Lushchak, Meet Zandawala, Dick R. Nässel   +3 more
doaj   +1 more source

Morin hydrate reduces survival and fertility, delays development and weakens lipid reserves in Aedes aegypti

Medical and Veterinary Entomology, Volume 39, Issue 3, Page 592-602, September 2025.
Morin hydrate promoted mortality and reduced the rate of pupation and egg laying in Aedes aegypti larvae that survive treatment. Morin hydrate reduces the levels of triacylglycerol, the main lipid reserve in A. aegypti larvae. The expression of proteins involved in lipogenesis and lipolysis was downregulated and upregulated, respectively, in larvae ...
Luan Valim dos Santos, Elaine Rodrigues Miranda Nery da Silva, Matheus Silva Caiado, Renan Albuquerque Camasmie, Herbert Marcusi Souza de Agustini, Raquel do Nascimento de Souza, Bruno Guimarães Marinho, Rosane Nora Castro, Mario Geraldo de Carvalho, Emerson Guedes Pontes   +9 more
wiley   +1 more source