Results 41 to 50 of about 953,924 (139)

What Endocrinologists Should Know About Iodine: Population Deficiency, Individual Excess and Misinformation in the United Kingdom

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Iodine deficiency, once considered eliminated in the United Kingdom, has re‐emerged, particularly among women of reproductive age, in whom requirements are increased during pregnancy and lactation. The declining consumption of dairy and white fish, the emerging use of unfortified plant‐based milk alternatives, and the absence of a national ...
Peter N. Taylor   +11 more
wiley   +1 more source

Rhythmic Characterisation of Extreme Circadian Preferences in Everyday Life

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT The aim of this study was to compare extreme circadian preferences by analysing motor activity rhythms in a naturalistic environment. Overall, 84 participants (64 females, 20 males) (42 evening types and 42 morning types), with a mean age of 23.3 years (standard deviation = 4.2), were selected for this study.
Lorenzo Tonetti   +4 more
wiley   +1 more source

Photic Cycle Shorter Than or Equal to Endogenous tau Postpones Diet‐Induced Obesity in Mice and Shows a Robust Aftereffect

open access: yesThe FASEB Journal, Volume 40, Issue 17, 15 September 2026.
Feeding female mice a high‐fat diet (HFD) lengthens endogenous circadian rhythmicity (tau) prior to HFD‐induced obesity (DIO), characterized by increased energy intake and reduced locomotor activity (A). While this DIO also occurs under a slower‐than‐tau 24 h T‐cycle, aligning T‐cycles to oscillate faster than the HFD‐lengthened tau postpones DIO—a ...
Anat Neumann, Roee Gutman
wiley   +1 more source

The rhythm of the night: Assessing temporal variation of activity patterns in arhythmic environments from field data

open access: yesEcosphere, Volume 17, Issue 8, August 2026.
Abstract Ecologists and zoologists have worked for centuries to understand the spreading, extent, and regulation of biological rhythms among eukaryotes living in arhythmic ecosystems. Investigating whether the long‐standing hypothesis that biological clocks went lost in species inhabiting arhythmic environments can thus have broad implications in ...
Elia Lo Parrino   +18 more
wiley   +1 more source

The gut microbiome organ

open access: yesiMeta, Volume 5, Issue 4, August 2026.
The gut microbiome can be conceptualized as a distributed organ‐like functional system with spatially structured organization, broad biochemical capacity, and continuous bidirectional communication with the host. By transforming dietary, host‐derived, and environmental substrates into bioactive metabolites with endocrine‐like, immunomodulatory, and ...
Yang Bi   +22 more
wiley   +1 more source

Workshop of the European Society of Chronobiology 1998. News from the Plant Chronobiology Research

open access: yes, 1999
Staiger D. Workshop of the European Society of Chronobiology 1998. News from the Plant Chronobiology Research. Biological Rhythm Research.
Staiger, Dorothee
core   +1 more source

No Evidence for Seasonal Variations in Fatigue, Sleepiness and Insomnia Symptoms: Spring Fatigue Is a Cultural Phenomenon Rather Than a Seasonal Syndrome

open access: yesJournal of Sleep Research, Volume 35, Issue 4, August 2026.
ABSTRACT Although not as prominent as in other animals, humans also experience seasonal variations in sleep duration and circadian processes. These variations are likely primarily driven by changes in photoperiod length. Anecdotally, many people report experiencing fatigue and low energy levels, particularly during spring in Germany, Switzerland and ...
Christine Blume, Albrecht Vorster
wiley   +1 more source

Circadian rhythm in humans

open access: yesZdravniški Vestnik, 2009
Background: Chronobiology is a field of science that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar and lunar related rhythms. These rhythms have frequencies lasting from milliseconds to years.
Klemen Španinger   +4 more
doaj  

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, Volume 600, Issue 14, Page 1992-2011, July 2026.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

New Insights Into the Role of Neutrophils in Lymphoma

open access: yesCancer Medicine, Volume 15, Issue 6, June 2026.
Tissue‐resident neutrophils challenge conventional paradigms by actively infiltrating normal lymphoid organs, predominantly localizing in interstitial compartments, a spatial distribution distinct from their classical vascular positioning. Neutrophils in lymphoid organs exhibit unique phenotypic and functional signatures, suggesting they play roles in ...
Ling Gu
wiley   +1 more source

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