Results 91 to 100 of about 4,595,378 (204)

Feeding and 20-hydroxyecdysone treatment reverses the effect of starvation on total haemocyte count in larval forms of Corcyra cephalonica (Lepidoptera)

open access: yes, 1991
Starvation during the larval development prevented the normally occurring increase in the total haemocyte number in Corcyra cephalonica.
Sujatha, P. S., Dutta-Gupta(Ray), Aparna
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The cholesterol-hydroxyecdysone-vitellogenin pathway is involved in the longevity of trophocytes and oenocytes of queen honey bees (Apis mellifera)

open access: yes, 2018
International audienceAbstractTrophocytes and oenocytes in the abdomen of honey bees do not divide after eclosion; however, trophocytes and oenocytes of queen bees have a longer lifespan and maintain better cellular function than those of worker bees. To
Lu, Cheng-Yen   +2 more
core   +1 more source

ประสิทธิภาพของสาร 7,8-dihydro-8α-20-hydroxyecdysone (DHECD) ต่อการชักนำความสามารถในการทนแล้งของมะเขือเทศเชอรี่ (Solanum lycopersicum L. cv. CH154) [PDF]

open access: yes, 2020
MASTER OF SCIENCE (M.Sc.)วิทยาศาสตรมหาบัณฑิต (วท.ม.)The objective of this research was to evaluate the effects of brassinosteroid mimic (7,8-dihydro-8α-20 hydroxyecdysone; DHECD) on the efficiency of photosynthesis in cherry tomatoes (Solanum ...

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The metabolism of 20-hydroxyecdysone in mice: Relevance to pharmacological effects and gene switch applications of ecdysteroids

open access: yes, 2011
Ecdysteroids exert many pharmacological effects in mammals (including humans), most of which appear beneficial, but their mechanism of action is far from understood.
Kumpun, Saowanee, S.   +26 more
core   +1 more source

Epidermal collagenase activity and its induction by 20-hydroxyecdysone in the fiddler crab Uca pugilator

open access: yesCurrent Zoology, 2009
The epidermal collagenase activity and its induction by 20-hydroxyecdysone in Uca pugilator were investigated. Zymographic electrophoresis showed four bands of collagenase activity, 16, 19, 22 and 29 kDa in molecular weight, with the former two ...
Erin A. TOUPS, Erin A. TOUPS
doaj  

Effects of a 20-hydroxyecdysone enriched quinoa extract in a nutritionnal obesity model : clinical application.

open access: yes, 2012
L'obésité est une maladie complexe dont la prévalence est en constante augmentation à travers le monde. A l'instar de nombreux médicaments qui ont pour origine des molécules végétales, de nouveaux principes actifs ont été recherchés dans les plantes ...
Foucault, Anne-Sophie
core  

Effects of juvenile hormone analogue (methoprene) and 20-hydroxyecdysone on reproduction in Polygonia c-aureum (Lepidoptera: Nymphalidae) in relation to adult diapause

open access: yes, 2017
We investigated the effects of juvenile hormone analogue (methoprene) and 20-hydroxyecdysone on female and male reproduction in a nymphalid butterfly, Polygonia c-aureum.
Gadi V. P. Reddy   +5 more
core   +1 more source

TLC analysis to determine the seasonal dependence of the level of 20-hydroxyecdysone in the leaves of Serratula tinctoria (L)

open access: yes, 1996
A quantitative method has been developed for determination of the 20-hydroxyecdysone content of Serratula tinctoria (L.), Thin-layer chromatography on silica was performed in two consecutive steps; the first was with chloroform - ethanol and the ...
Kalász Huba   +4 more
core  

The effects of 20-hydroxyecdysone and 17β-estradiol on the skin of ovariectomized rats

open access: yes, 2011
Objective: 20-hydroxyecdysone has numerous favorable effects on a variety of organs, including the skin, where it improves wound healing. It is devoid of estrogenic and androgenic effects.
Johannes T. Wessels   +7 more
core   +1 more source

Analysis of 20-Hydroxyecdysone and Its Analogs by High Performance Liquid Chromatography – Mass Spectrometry

open access: yes, 2017
[[abstract]]在昆蟲發育過程中,20-羥基蛻皮激素 (20-Hydroxyecdysone) 及其類似物扮演重要的角色,其影響生命週期的演進,包括蛻皮、繁殖、壓力反應和壽命等等。使用酵素免疫分析法分析這類激素,雖然可以得知所有類似物的約略總量,但不能清楚知道個別分析物的濃度。因此,本研究開發了高效液相層析-大氣壓力化學游離-質譜分析法 (high performance liquid chromatography - atmospheric pressure chemical ...
Shiu, Wei-Chiang, 徐偉強
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