Results 41 to 50 of about 1,833,255 (278)

Sleep and circadian rhythms in mood disorders [PDF]

Acta Psychiatrica Scandinavica, 2007
Objective:  Self‐reported sleep disturbances are present in over 80% of patients with depression. However, sleep electroencephalography (EEG) findings, based on overnight polysomnography have not always differentiated depressed patients from healthy individuals.Method:  The present paper will review the findings on sleep EEG studies in depression ...
openaire   +3 more sources

Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli, Karine Lacourse, Hélène Blais, Anne‐Sophie Deshaies‐Rugama, Cynthia Thompson, Alex Desautels, Jacques Montplaisir, Milan Nigam, Christophe Moderie, Boshra Khajehpiri, Catherine Duclos, Jean Marc Lina, Julie Carrier, Nadia Gosselin   +13 more
wiley   +1 more source

Sex Differences in Insomnia and Circadian Rhythm Disorders: A Systematic Review

Medicina
Insomnia and circadian rhythm disorders are increasingly common in modern society and lead to significant challenges for people’s health and well-being. Some studies suggests that men and women differ in neurohormonal secretion, biological processes, and
Evelina Pajėdienė, Viltė Urbonavičiūtė, Vita Ramanauskaitė, Lukas Strazdauskas, Ambra Stefani   +4 more
doaj   +1 more source

Acute Sleep-Wake Cycle Shift Results in Community Alteration of Human Gut Microbiome

mSphere, 2020
Disturbances of sleep and the underlying circadian rhythm are related to many human diseases, such as obesity, diabetes, cardiovascular disorders, and cognitive impairments. Dysbiosis of the gut microbiome has also been reported to be associated with the
Zhi Liu, Zhi-Yuan Wei, Junyu Chen, Kun Chen, Xuhua Mao, Qisha Liu, Yu Sun, Zixiao Zhang, Yue Zhang, Zhou Dan, Junming Tang, Lianhong Qin, Jian-Huan Chen, Xingyin Liu   +13 more
doaj   +1 more source

Zwitterionic Polymer Coating Enabled Chronic Dopamine Sensing and Electrophysiology Recording in Free‐Moving Mice

Advanced Healthcare Materials, EarlyView.
Application of a zwitterionic poly(sulfobetaine methacrylate) (PSB) coating to microelectrode arrays and Ag/AgCl reference electrodes effectively inhibits biofouling and structural degradation. This strategy successfully enables simultaneous, long‐term electrophysiological recording and dopamine sensing in freely behaving mice, facilitating ...
Bingchen Wu, Cort Thompson, Thomas Deakin, Yan Xu, Colleen A. McClung, Xinyan Tracy Cui   +5 more
wiley   +1 more source

A cellular model for human daily behaviour [PDF]

, 2010
All the biochemical, physiological or behavioural processes whose period is about 24 hours possess a circadian rhythm. In mammals circadian rhythms control almost all aspects of human daily behaviour and physiology.
Pagani, Lucia
core   +1 more source

A Critical Time Window of Neocortex Modulation for Remote Fear Memory in Rats and Humans

Advanced Science, EarlyView.
This study identifies a delayed consolidation window around 18 h after fear learning in the mPFC essential for remote fear memory. VTA dopaminergic input during this window sustains remote memory in rats, while non‐invasive stimulation of homologous human mPFC at the corresponding time selectively weakens remote but not recent fear memory, revealing a ...
Lu Cao, Yu‐Xin Zhang, Xiao‐Xing Liu, Zi‐Hang Li, Tang‐Sheng Lu, Jia‐Hui Deng, Wen Zhang, Peng Li, Xiao Lin, Shu‐Fei Feng, Ting‐Ting Li, Shi‐Qiu Meng, Xiang‐Dong Tang, Tian‐Ye Jia, Trevor W. Robbins, Jie Shi, Ying Han, Yan‐Xue Xue, Lin Lu, Kai Yuan   +19 more
wiley   +1 more source

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Entorhinal Astrocyte Transplants Restore Spatial Exploration and Alleviate Amyloid‐Beta Pathology in Alzheimer's Mice

Advanced Science, EarlyView.
Impaired MEC astrocytic Ca2+ signaling is associated with fragmented spatial exploration in AD mice. Region‐specific glial progenitor transplantation generates engrafted astrocytes that are accompanied by improved AQP4 polarization, reduced amyloid‐β‐associated pathology, attenuated neuroinflammation, preserved synaptic integrity, and ameliorated ...
Fengjuan Wu, Jihua Fan, Xiang Zhou, Zhiqi Yang, Mingyue Gong, Mingzhu Huang, Zhenlu Cai, Shaofan Yang, Teng Teng, Chuanyan Yang, Jin Li, Haoyu Wang, Shuangshuang Dai, Chunhai Chen, Xiaowei Chen, Manxia Wang, Kuan Zhang   +16 more
wiley   +1 more source

Therapeutic potential of ginsenosides in circadian rhythm-based skin disorders

Journal of Ginseng Research
The circadian rhythm, a biological system all living organisms possess, has become increasingly important as sleep patterns become more irregular. Circadian rhythms affect various cell types (fibroblasts, fat cells, muscles, etc.) and organs (the liver ...
Heejun Ha, Heeseon Shin, Sukhyun Min, Natasha Christabella Sutopo, Khamit Yerkesh, Eunsun Jung, Minkyung Song, Jae Youl Cho, Jongsung Lee   +8 more
doaj   +1 more source