scholarly journals NMR-based investigation of the Drosophila melanogaster metabolome under the influence of daily cycles of light and temperature

2015 ◽  
Vol 11 (12) ◽  
pp. 3305-3315 ◽  
Author(s):  
Navdeep Gogna ◽  
Viveka Jagdish Singh ◽  
Vasu Sheeba ◽  
Kavita Dorai

This work presents an NMR-based metabolomic approach to study metabolic processes inD. melanogasterthat exhibit a diurnal rhythm.

2003 ◽  
Vol 88 (1) ◽  
pp. 32-40 ◽  
Author(s):  
John E. Zimmerman ◽  
Miroslaw Mackiewicz ◽  
Raymond J. Galante ◽  
Lin Zhang ◽  
Jacqueline Cater ◽  
...  

1987 ◽  
Vol 114 (3) ◽  
pp. 477-482 ◽  
Author(s):  
J. R. Seckl ◽  
S. L. Lightman

ABSTRACT Diurnal rhythms in the concentrations of vasopressin (AVP) and oxytocin in cerebrospinal fluid (CSF) differ between species and are unrelated to changes in the levels of these hormones in the peripheral circulation. We have investigated neurohypophysial hormone rhythms in the CSF of the conscious goat by determining whether they are entrained by daily cycles of light and darkness and by assessing the effect of the suppression of plasma cortisol. Goats were implanted with cisternal cannulae under halothane anaesthesia and allowed to recover. They were accustomed to a 12 h light:12 h darkness lighting cycle (lights on from 07.30 to 19.30 h). After initial serial CSF and plasma sampling the daily cycle of light and darkness was reversed. Three goats were kept in constant light for 8 days before the study and five were given dexamethasone (5 mg/12 h) for 4 days. There was a significant (P < 0·01) diurnal variation in CSF concentrations of AVP, with a maximum of 3·6 ± 0·8 (s.e.m.) pmol/l at 12.00 h and a minimum of 1·4 ± 0·3 pmol/l at 24.00 h. There were no significant changes in CSF concentrations of oxytocin or plasma AVP. After the light:darkness cycle was reversed the AVP rhythm in the CSF was disrupted after 24 h and reversed after 8 days. The diurnal rhythm of AVP in CSF persisted in animals exposed to constant light. After treatment with dexamethasone plasma cortisol was suppressed and showed no diurnal rhythm but the AVP rhythm in CSF remained unchanged. J. Endocr. (1987) 114, 477–482


Author(s):  
Maria M. Bayliak ◽  
Oleh I. Demianchuk ◽  
Dmytro V. Gospodaryov ◽  
Oleksandra B. Abrat ◽  
Maria P. Lylyk ◽  
...  

2006 ◽  
Vol 32 (5) ◽  
pp. 349-358 ◽  
Author(s):  
Roger Persson ◽  
Palle Ørbæk ◽  
Göran Kecklund ◽  
Torbjörn Åkerstedt

2020 ◽  
Author(s):  
Gesa F. Dinges ◽  
Alexander S. Chockley ◽  
Till Bockemühl ◽  
Kei Ito ◽  
Alexander Blanke ◽  
...  

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