Results 51 to 60 of about 227,315 (399)

Endogenous circannual rhythm in LH secretion: insight from signal analysis coupled with mathematical modelling [PDF]

Philosophical Transactions of the Royal Society, Series A 367, 1908 (2009) 4759-4777, 2009
In sheep as in many vertebrates, the seasonal pattern of reproduction is timed by the annual photoperiodic cycle, characterized by seasonal changes in the daylength. The photoperiodic information is translated into a circadian profile of melatonin secretion. After multiple neuronal relays (within the hypothalamus), melatonin impacts GnRH (gonadotrophin
arxiv   +1 more source

Melatonin for rapid eye movement sleep behavior disorder in Parkinson's disease : a randomised controlled trial [PDF]

, 2019
Background Melatonin may reduce REM-sleep behavior disorder (RBD) symptoms in Parkinson's disease (PD), though robust clinical trials are lacking. Objective To assess the efficacy of prolonged-release (PR) melatonin for RBD in PD.
Coeytaux Jackson, Alessandra, Fang, Bernard A.M., Gilat, Moran, Grunstein, Ron R., Hall, Julie, Hammond, Deborah, Lewis, Simon J. G., Marshall, Nathaniel S., Mullins, Anna E., Wong, Keith K.H., Yee, Brendon J.   +10 more
core   +1 more source

Melatonin metabolism, signaling, and possible roles in plants.

The Plant Journal, 2020
Melatonin is a multifunctional biomolecule found in both animals and plants. In this review, the biosynthesis, levels, signaling, and possible roles of melatonin and its metabolites in plants is summarized. Tryptamine 5-hydroxylase (T5H), which catalyzes
K. Back
semanticscholar   +1 more source

Mediating effect of circadian rhythm between work stress and sleep quality in Chinese shift‐working nurses: A cross‐sectional survey

Nursing Open, Volume 10, Issue 2, Page 560-569, February 2023., 2023
Abstract Aim This study examined the mediating effect of circadian rhythm amplitude (LV) and stability (FR) between work stress and sleep quality among Chinese shift‐working nurses (SWNs). Design A cross‐sectional study. Methods Three‐hundred and seventy‐nine nurses working in shifts were investigated by convenient sampling from six hospitals in ...
Songqi Wu, Caiqin Wu, Xiaohan Wang, Wenling Fei, Yue Fu   +4 more
wiley   +1 more source

Salivary melatonin onset in youth at familial risk for bipolar disorder [PDF]

, 2019
Melatonin secretion and polysomnography (PSG) were compared among a group of healthy adolescents who were at high familial risk for bipolar disorder (HR) and a second group at low familial risk (LR).
Armitage, Roseanne, Bertram, Holli, Fullerton, Janice M., Ghaziuddin, Neera, Glowinski, Anne L., Hulvershorn, Leslie A., Kamali, Masoud, McInnis, Melvin, Mitchell, Philip B., Nurnberger, John, Roberts, Gloria M. P., Shamseddeen, Wael, Stapp, Emma, Wilcox, Holly C.   +13 more
core   +2 more sources

Relationship among psychotic features, benzodiazepine receptor agonists, and rehospitalization in patients with electroconvulsive therapy‐responsive major depressive disorder: A retrospective 2‐year observational study

Neuropsychopharmacology Reports, Volume 42, Issue 4, Page 449-456, December 2022., 2022
Abstract Aim It is controversial whether psychotic features are a risk factor for relapse in patients with electroconvulsive therapy‐responsive major depressive disorder. A recent study reported that benzodiazepine receptor agonists reduce relapse of psychotic depression.
Akise Umakoshi, Masahiro Takeshima, Yu Itoh, Mari Yamamoto, Nana Shibata, Masaya Ogasawara, Naoko Ayabe, Kazuo Mishima   +7 more
wiley   +1 more source

Melatonin distribution reveals clues to its biological significance in basal metazoans.

PLoS ONE, 2012
Although nearly ubiquitous in nature, the precise biological significance of endogenous melatonin is poorly understood in phylogenetically basal taxa.
Modi Roopin, Oren Levy
doaj   +1 more source

"Melatonin": A Case Study on AI-induced Musical Style [PDF]

arXiv, 2022
Although the use of AI tools in music composition and production is steadily increasing, as witnessed by the newly founded AI song contest, analysis of music produced using these tools is still relatively uncommon as a mean to gain insight in the ways AI tools impact music production.
arxiv  

Nightly treatment of primary insomnia with prolonged release melatonin for 6 months: a randomized placebo controlled trial on age and endogenous melatonin as predictors of efficacy and safety [PDF]

, 2010
<p>Background: Melatonin is extensively used in the USA in a non-regulated manner for sleep disorders. Prolonged release melatonin (PRM) is licensed in Europe and other countries for the short term treatment of primary insomnia in patients aged 55 ...
A Brzezinski, A Chesson, AG Wade, AJ Lewy, Alan G Wade, Alex McConnachie, C Cajochen, C Liu, CA Czeisler, D Buysse, D Garfinkel, D Leger, DJ Buysse, DJ Kennaway, E Grossman, EM Gibson, G Hajak, G Mayer, Gordon Crawford, H Nakagawa, HJ Lynch, I Haimov, I Haimov, Ian Ford, IV Zhdanova, J Backhaus, JG MacFarlane, JK Wyatt, M Littner, M Littner, M Sharma, MA Hofman, MA Paul, Moshe Laudon, N Buscemi, N Zisapel, Nava Zisapel, OL Bech P, P Lemoine, P Tyrer, R Luthringer, R Mahlberg, R Mahlberg, S Ancoli-Israel, SW Lockley, T Gorfine, T Gorfine, T Roth, T Shochat, Tali Nir, W Guy, World Psychiatric Association, YH Wu   +52 more
core   +3 more sources

Melatonin: Pharmacology, Functions and Therapeutic Benefits

Current Neuropharmacology, 2017
: Background: Melatonin synchronizes central but also peripheral oscillators (fetal adrenal gland, pancreas, liver, kidney, heart, lung, fat, gut, etc.), allowing temporal organization of biological functions through circadian rhythms (24-hour cycles) in
S. Tordjman, S. Chokron, R. Delorme, Annaëlle Charrier, É. Bellissant, N. Jaafari, C. Fougerou   +6 more
semanticscholar   +1 more source