Results 31 to 40 of about 143,456 (314)

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

Estimate the prevalence of daily caffeine consumption, caffeine use disorder, caffeine withdrawal and perceived harm in Iran: a cross-sectional study

Scientific Reports
One of the informal diagnoses in DSM-5 is Caffeine Use Disorder (CUD). CUD and high levels of caffeine consumption could impact mental health conditions.
Fatemeh Abdoli, Mohammadreza Davoudi, Fereshte Momeni, Farhang Djafari, Behrooz Dolatshahi, Samaneh Hosseinzadeh, Hajar Aliyaki, Zahra Khalili   +7 more
doaj   +1 more source

Orchestration of Dopamine Neuron Population Activity in the Ventral Tegmental Area by Caffeine: Comparison With Amphetamine [PDF]

, 2021
Ornella Valenti, Alice Zambon, Stefan Boehm   +2 more
openalex   +1 more source

PERHALIDES OF CAFFEINE. [PDF]

Journal of the American Chemical Society, 1896
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openaire   +1 more source

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

Caffeine metabolites are associated with different forms of caffeine supplementation and with perceived exertion during endurance exercise

Biology of Sport, 2020
This investigation compared the urine caffeine metabolites produced from different forms of caffeine supplementation given to runners 15 minutes before a series of 5-km running trials. Fourteen amateur competitive runners completed a series of self-paced
Peter Whalley, Carl Paton, Chey G. Dearing   +2 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

Caffeine induces neurobehavioral effects through modulating neurotransmitters

Saudi Pharmaceutical Journal, 2020
Evidence demonstrates that chronic caffeine exposure, primarily through consumption of coffee or tea, leads to increased alertness and anxiety. Preclinical and clinical studies showed that caffeine induced beneficial effects on mood and cognition.
Fawaz Alasmari
doaj   +1 more source

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

Advanced Science, EarlyView.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang, Chenhui Li, Dongjiao Wang, Qibin Wu, Zhen Zeng, Huiming Guo, Han Cheng, Songbi Chen, Hongxing Cao, Hongmei Cheng, Jianghui Xie, Youxiong Que   +11 more
wiley   +1 more source

Pharmacology of caffeine and its effects on the human body

European Journal of Medicinal Chemistry Reports
Caffeine is the world's most popular stimulant and psychoactive substance. Given the ubiquitous use of caffeine, it is crucial for us to comprehend how our body interacts with caffeine. The pharmacokinetics of caffeine and its action mechanisms have been
Vundrala Sumedha Reddy, S. Shiva, Srinidhi Manikantan, Seeram Ramakrishna   +3 more
doaj   +1 more source