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In this study, heavy nighttime physical exercise delayed the circadian phase of clock gene expression by 2 to 4 hours in a professional fighter, suggesting potential implications for managing circadian disorders.

This study identified changes in transcription factor gene expression across various signaling pathways during inner ear hair cell regeneration in birds, revealing patterns and potential new pathways for future investigation.

This study found that many effects previously thought to be caused by circadian rhythm disruption in Bmal1 knockout mice are actually due to BMAL1's properties unrelated to its clock function.

This study found that shift nurses exhibited lower circadian variations compared to daytime nurses, indicating an adjustment of their biological clocks to continuous shift schedules.

The authors concluded that utilizing clock gene expression from hair follicle cells may improve circadian-phase estimation in clinical settings, aiding the detection of circadian-related sleep problems despite social time constraints.

This study is designed to explore how circadian rhythms are affected by obesity and mental health conditions, such as schizophrenia and bipolar disorder, using biological and lifestyle data from independently living adults.

This study concluded that the expression of clock genes, specifically BMAL1, in hair follicles is linked to circadian rhythm, and BMAL1 regulates hair growth.

This study reports a less invasive method for detecting human clock gene expression using hair follicle cells, which accurately reflects individual behavioral rhythms and suggests a time lag issue for rotating shift workers.

This study found that extreme morning and evening chronotypes exhibited significant differences in the timing of circadian clock gene expression in hair follicle cells.

This study found that decision-making effects related to time of day and chronotype were only significant when using RNA-based chronotype measurements, indicating molecular clock differences may influence these behaviors.

This study observed that in wild snowshoe hares, gene expression patterns during seasonal coat color change show a consistent lag between gene expression and visible coat color changes.

This review updates the protective effects and molecular mechanisms of melatonin against ultraviolet-induced damage in human skin, reporting no new clinical findings.

This study found that activation of delta-opioid receptors in keratinocytes may delay the expression of the PER2 gene, suggesting a possible link to cancer development through circadian rhythm disruption.

This study found that night shift work disrupts clock gene expression in Japanese men, particularly affecting rhythms and levels of Period3 and Nr1d2, based on the shift schedule.

This study found that leukocytes and beard hair follicle cells have an endogenous circadian clock, with PER1 and PER3 expression possibly serving as biomarkers for assessing individual biological clock traits.

This research discusses the time-of-day-dependent role of protein-complex assembly in the differentiation of human epidermal stem cells and highlights the context-dependent functioning of human protein complexes.

This study found that individuals with both schizophrenia and obesity showed reduced PER3 gene expression amplitude and lower melatonin levels compared to normal-weight controls, suggesting dampened circadian rhythms linked to irregular sleep. Hair follicle sampling was effective for assessing these molecular rhythms.

This study assessed vitamin E and a combined oral contraceptive's impact on continuous light-induced PCOS in female rats, finding they reduced testosterone levels and modified oxidative stress, suggesting benefits via melatonin-related pathways.

In this study, researchers developed a simple, non-invasive method to monitor circadian gene expression using whole hair root cultures, finding that elderly dementia patients' peripheral clocks still oscillate similarly to younger, healthier individuals, which suggests cellular senescence minimally affects some aspects of circadian rhythms.

In this study, college students with an evening chronotype were found to be at greater risk for androgenetic alopecia, potentially due to altered circadian rhythms as indicated by shifts in heart rate patterns and clock gene expression in hair follicles.

This study analyzed gene expression changes during the autumn coat color change in mountain hares and found conserved gene regulation with snowshoe hares, highlighting its role in seasonal camouflage adaptation.

This study found that the circadian clock regulates the activation and heterogeneity of hair follicle bulge stem cells, affecting tissue homeostasis and tumorigenesis risk in mouse skin.

This study found that thyroxine modulates peripheral molecular clock gene expression in human hair follicles, which may have implications for treating clock-related diseases in patients with thyroid dysfunction.

This review discusses the role of circadian rhythms in stem cell differentiation and tissue regeneration, emphasizing their impact on organ physiology and aging, but reports no new experimental results.

In this study involving mice, the researchers observed that circadian rhythm disorder can pass alopecia risk to male offspring, and parental Pu-erh tea consumption, particularly by females or both parents, mitigated this risk through various biological mechanisms.

This review examines the molecular mechanisms of the circadian clock and its effects on cardiovascular functions, proposing a novel non-invasive method using hair follicle cells to assess circadian regulation in humans, but reports no new clinical results.

In this study, the expression of certain hair follicle-related genes differed between growth phases in Angora goats, with HOXC13 showing overexpression during the anagen phase, potentially influencing the mohair's shine and texture.

This study found that HOXC13 gene expression was significantly higher during the anagen phase in Angora goats, potentially contributing to the mohair's shiny and silky nature.

In this study of Angora goats, researchers found that HOXC13 and other genes were overexpressed during the active hair growth phase, suggesting a role in mohair structure.

This study found significant differences in gene expression between newborn and adult skin, with infant skin notably increasing processes related to ECM organization, cell adhesion, and collagen fibril organization.