Results 21 to 30 of about 31,099 (303)

A quantitative assay for the juvenile hormones and their precursors using fluorescent tags. [PDF]

open access: yesPLoS One, 2012
Background: The juvenile hormones (JHs) are sesquiterpenoid compounds that play a central role in insect reproduction, development and behavior. The lipophilic nature of JHs and their precursors, in conjunction with their low concentration in tissues and
Rivera-Perez C, Nouzova M, Noriega FG.
europepmc   +2 more sources

Neurohormones in insect stress: A review [PDF]

open access: yesArchives of Biological Sciences, 2006
The neurohormones are the master regulators of all life processes in insects and they create a strategy of stress protecting events. Neurohormones are synthesized mainly in insect brain neurosecretory neurons.
Perić-Mataruga Vesna   +2 more
doaj   +1 more source

Mechanisms of Neuroendocrine Stress Response in Drosophila and Its Effect on Carbohydrate and Lipid Metabolism

open access: yesInsects, 2023
Response to short-term stress is a fundamental survival mechanism ensuring protection and adaptation in adverse environments. Key components of the neuroendocrine stress reaction in insects are stress-related hormones, including biogenic amines (dopamine
Margarita A. Bobrovskikh   +1 more
doaj   +1 more source

Environmentally relevant concentrations of mercury inhibit the growth of juvenile silver carp (Hypophthalmichthys molitrix): Oxidative stress and GH/IGF axis

open access: yesEcotoxicology and Environmental Safety, 2022
Mercury (Hg) is a global environmental contaminant, and excessive mercury levels in water can adversely affect the growth of fish. Silver carp (Hypophthalmichthys molitrix) is one of the important freshwater aquaculture fish in China, and its natural ...
Yan Pu   +8 more
doaj   +1 more source

Juvenile hormone: production, regulation, current application in vector control and its future applications [PDF]

open access: yes, 2021
Juvenile hormone is an exclusive hormone found in insects which involves regulating various insect physiology. A total of eight juvenile hormones have been identified in insects which include JH 0, JH I, JH II, JH III, 4-methyl JH I (Iso- JH 0), JHB III,
Nur Aliah, N. A.   +3 more
core   +1 more source

Kr-h1, a Cornerstone Gene in Insect Life History

open access: yesFrontiers in Physiology, 2022
Insect life cycle is coordinated by hormones and their downstream effectors. Krüppel homolog1 (Kr-h1) is one of the crucial effectors which mediates the actions of the two critical hormones of insects, the juvenile hormone (JH) and 20-hydroxyecdysone ...
Qianyu He, Yuanxi Zhang
doaj   +1 more source

Juvenile Hormone Induction of Esterases: A Mechanism for the Regulation of Juvenile Hormone Titer [PDF]

open access: yesProceedings of the National Academy of Sciences, 1972
Within a few hours after injection of juvenile hormone into Hyalophora gloveri pupae, several fast-migrating carboxylesterases (EC 3.1.1.1) that are sensitive to di iso propylfluorophosphate appear in the hemolymph.
D, Whitmore, E, Whitmore, L I, Gilbert
openaire   +2 more sources

Bone marrow mesenchymal stem cells derived from juvenile macaques reversed ovarian ageing in elderly macaques

open access: yesStem Cell Research & Therapy, 2021
Background Female sex hormone secretion and reproductive ability decrease with ageing. Bone marrow mesenchymal stem cells (BMMSCs) have been postulated to play a key role in treating ovarian ageing.
Chuan Tian   +13 more
doaj   +1 more source

Structure Determination of a Natural Juvenile Hormone Isolated from a Heteropteran Insect

open access: yesPsyche: A Journal of Entomology, 2012
Juvenile hormone (JH), which occurs in several forms in different insects, is one of the most important insect hormones. The structure of JH in Heteroptera has not been elucidated until recently, although insects in this suborder have long been used as ...
Toyomi Kotaki   +2 more
doaj   +1 more source

Neuroendocrine Regulation of Reproductive Dormancy in the Fruit Fly Drosophila melanogaster: A Review of Juvenile Hormone-Dependent Regulation

open access: yesFrontiers in Ecology and Evolution, 2021
Animals can adjust their physiology, helping them survive and reproduce under a wide range of environmental conditions. One of the strategies to endure unfavorable environmental conditions such as low temperature and limited food supplies is dormancy. In
Yoshitomo Kurogi   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy