Results 21 to 30 of about 80,922 (304)

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

Evo-devo of human adolescence: beyond disease models of early puberty [PDF]

open access: yes, 2013
Despite substantial heritability in pubertal development, much variation remains to be explained, leaving room for the influence of environmental factors to adjust its phenotypic trajectory in the service of fitness goals.
A Templeton   +69 more
core   +2 more sources

The Use of Dietary Additives in Fish Stress Mitigation: Comparative Endocrine and Physiological Responses [PDF]

open access: yes, 2019
In the last years, studies on stress attenuation in fish have progressively grown. This is mainly due to the interest of institutions, producers, aquarists and consumers in improving the welfare of farmed fish.
Abdel-Tawwab   +173 more
core   +2 more sources

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

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

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

Evaluation of the susceptibility of the pea aphid, Acyrthosiphon pisum, to a selection of novel biorational insecticides using an artificial diet [PDF]

open access: yes, 2009
An improved technique was developed to assay the toxicity of insecticides against aphids using an artificial diet. The susceptibility of the pea aphid Acyrthosiphon pisum (Harris) (Hemiptera: Aphidoidea) was determined for a selection of novel ...
Sadeghi, Amin   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy