Results 31 to 40 of about 44,889 (252)

Withdrawal Symptoms and Executive Functions After 24-Hour Caffeine Abstinence in Office Workers with Habitual Coffee Consumption

Journal of Health Science and Medical Research (JHSMR)
Objective: This research aimed to investigate withdrawal symptoms and executive functions (EFs) after 24-hour caffeine abstinence in office workers with habitual coffee consumption. Material and Methods: Eighteen male office workers (age 32.94±4.14 years,
Tipwimon Singeiam, Nutcharee Senakham
doaj   +1 more source

Caffeine Consuming Children and Adolescents Show Altered Sleep Behavior and Deep Sleep

Brain Sciences, 2015
Caffeine is the most commonly ingested psychoactive drug worldwide with increasing consumption rates among young individuals. While caffeine leads to decreased sleep quality in adults, studies investigating how caffeine consumption affects children’s and
Andrina Aepli, Salome Kurth, Noemi Tesler, Oskar G. Jenni, Reto Huber   +4 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Perceived effect of caffeine-containing products consumption on nocturnal sleep and daytime functioning among students of a private tertiary institution in southern Nigeria

Ibom Medical Journal, 2021
Context: University students who deprive themselves of enough nocturnal sleep due to academic activities are at risk of the deleterious effects of sleep deprivation that usually follow.
Eduviere AT, Omogbiya AI, Otomewo LO, Otovwe A   +3 more
doaj   +1 more source

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich, Jonathan A. Gernert, Hanna Zimmermann, Lisa Tagnin, Marianthi Zeinaki, Laura Sanzo, Letizia Vogler, Elisabeth Kaufmann, Justina Dargvainiene, Frank Leypoldt, Gérard N. Bischof, Robert Perneczky, Boris‐Stephan Rauchmann, Simon Lindner, Günter U. Höglinger, Rudolf A. Werner, Martin Kerschensteiner, Tania Kümpfel, Matthias Brendel, Franziska S. Thaler   +19 more
wiley   +1 more source

Inhibitory Decay and Supercritical Brain Dynamics During Sleep Deprivation

Advanced Science, EarlyView.
Sleep deprivation progressively shifts human brain dynamics from near‐critical toward supercritical states, as revealed by neuronal avalanche analysis of resting‐state fMRI. These changes track subjective sleep pressure rather than vigilance lapses and show marked network heterogeneity. A circuit model suggests that reduced inhibitory efficacy provides
Dai Zhang, Liqin Zhou, Rong Wang, Yuehua Han, Zhentao Zuo, Yanghua Tian, Ke Zhou   +6 more
wiley   +1 more source

Consumption of Caffeinated Products and Cardiac Ectopy [PDF]

Journal of the American Heart Association, 2016
Background Premature cardiac contractions are associated with increased morbidity and mortality. Though experts associate premature atrial contractions ( PAC s) and premature ventricular contractions ( PVC s) with caffeine, there are no data to support this ...
Dixit, Shalini, Stein, Phyllis K, Dewland, Thomas A, Dukes, Jonathan W, Vittinghoff, Eric, Heckbert, Susan R, Marcus, Gregory M   +6 more
openaire   +4 more sources

Natural Variation of COLD and CATECHINS REGULATOR 1 Coordinately Fine‐Tunes Cold Tolerance and Tea Quality in Tea Plants

Advanced Science, EarlyView.
Multi‐trait genome‐wide association mapping identifies a central hub regulator, COLD AND CATECHINS REGULATOR 1 (CCR1), and its excellent natural allele variation, coordinately enhancing cold tolerance and promoting catechins biosyntheis. CsCCR1 interacts with CsCBF1/3 and is transcriptionally activated by CsLUX and CsKUA1 to promote catechins ...
Yanli Wang, Wei Tong, Qiong Wu, Didi Wu, Yanrui Zhang, Qijuan Gao, Fangdong Li, Zhaoliang Zhang, Wenjie Wang, Chuankui Song, Enhua Xia   +10 more
wiley   +1 more source

The prevalence of alcohol and pre-workout caffeine consumption and their effect on injuries and sleep disorders in young elite soccer players

Спортивная медицина: наука и практика, 2023
Aim: to study the prevalence of alcohol and pre-workout caffeine use and their impact on sleep quality and injury among the young soccer players.Methods: this study examined the prevalence of alcoholic beverages and pre-workout caffeine consumption in ...
E. D. Koroleva, M. S. Butovskiy, G. I. Malyakin, A. M. Lazarev, D. V. Telyshev, T. M. Vakhidov   +5 more
doaj   +1 more source

Paternal Sperm Gnas‐ICR Epigenetic Programming Contributes to PPP‐Like Phenotypes in Female Offspring

Advanced Science, EarlyView.
A paternal glucocorticoid–sperm Gnas‐ICR axis is linked to ovarian endocrine programming in female offspring. Paternal preconception caffeine exposure elevates corticosterone, promotes sperm Gnas‐ICR hypermethylation, and is associated with ovarian Gnas upregulation, cAMP/PKA/CREB–StAR activation, enhanced estradiol synthesis, and PPP‐like phenotypes ...
Jing Huang, Lu Chen, Tiancheng Wu, Yating Li, Hui Wang   +4 more
wiley   +1 more source