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This study found that epidermal growth factor significantly reduced fibre growth in cultured Tukidale and Romney hair follicles, while cortisol had no effect on follicle growth.

This theoretical review analyzes how stress affects hair loss through hormonal and neural pathways, indicating that knowledgeable hairdressers could help in early detection and guide clients toward medical interventions, highlighting a potential collaboration between aesthetic care and medical treatment for stress-induced alopecia.

Cortisone and cortisol levels in pregnant women’s hair increase as labor approaches, indicating higher stress.

This study examined serum PSA levels in women with androgenetic alopecia to evaluate their potential as a marker for androgen effects on target organs.

This study found that hair cortisol concentration is consistently associated with salivary cortisol output throughout the day, making it a potential reliable biomarker of long-term cortisol secretion.

This review discusses the use of hair cortisol concentration as a marker for chronic stress and long-term cortisol secretion in animals, highlighting its benefits and the need for standardized sampling protocols.

This review found that patients with depression generally have higher hair cortisol concentrations compared to healthy controls, while those with PTSD tend to have lower concentrations.

Cortisol and cortisone release from hair increases in steps over time during incubation.

This study developed a new method using liquid chromatography-tandem mass spectrometry to measure multiple steroid hormones in hair, requiring significantly fewer strands than previous methods, with high accuracy and precision.

This study found that experiencing childhood abuse is associated with higher BMI, but hair cortisol and cortisone do not mediate this relationship.

This study found that male patients with alopecia areata had significantly higher levels of copeptin and cortisol compared to healthy controls, suggesting these biomarkers could play a role in the condition's pathophysiology and may serve as diagnostic indicators.

In this study, researchers found a significant positive association between cortisol levels in hair and feces of domestic cats and dogs, suggesting hair cortisol assays could be a viable option for monitoring chronic stress.

This review discusses nonclassical 21-hydroxylase deficiency as the most common autosomal recessive disorder in humans and highlights the effectiveness of glucocorticoid treatment in reversing related symptoms.

This study found that trilostane was effective in resolving symptoms such as polyuria and polydipsia in many dogs with pituitary-dependent hyperadrenocorticism, with significant hormone level reductions observed.

This study found that hair cortisol concentrations in sheep were significantly increased by extensive brushing or dexamethasone treatment, suggesting that external factors may affect its reliability as a chronic stress measure.

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.

In this study, ketoconazole treatment improved acne in all women and reduced hirsutism in some, but it caused several side effects and requires careful monitoring.

This study suggests that hormonal changes may contribute to the persistent symptoms of long COVID, with specific patterns observed in serum hormone levels related to fatigue and sensory dysfunction.

This study found that women with acne resistant to conventional treatments had significantly higher levels of testosterone, DHEA‑S, prolactin, and LH, suggesting potential underlying hormonal disorders.

This study found significant hormonal differences, including elevated cortisol and androstenedione levels, in both male and female androgenic hair loss patients compared to controls, suggesting complex hormonal interactions in the condition.

This study concluded that neither basal nor ACTH-stimulated 17-OHP concentrations effectively indicate carrier status for 21-hydroxylase deficiency among Slovenian hyperandrogenic women, recommending molecular analysis of the CYP21 gene for reliable screening.

This study found that elevated serum cortisol levels and other immunological changes are significantly involved in the active phases of psoriasis eruptions.

This study reported that relocation in police horses was associated with elevated hair cortisol concentrations, possibly suggesting altered welfare due to changed surroundings, and that seasonal variations affected both cortisol levels and hair growth.

This study found that stress plays a significant role in altering phenotypic features and body composition among PCOS patients, potentially worsening due to the COVID-19 pandemic.

In this study, plasma levels of MSH and cortisol in patients with alopecia areata did not show significant changes compared to healthy controls.

This case report describes a 60-year-old man with a rare 46, XX karyotype who presented with cerebellar infarct and polycythaemia, leading to further endocrine investigations after adrenal gland enlargement was found.

This case study describes a severe instance of iatrogenic Cushing's syndrome induced by gamma-hydroxybutyric acid, exacerbated by combined use of betamethasone and anabolic steroids, in an HIV-positive patient on cobicistat-containing therapy.

This study observed that hair cortisol levels increased during pregnancy and positively correlated with certain systemic cytokines postpartum, suggesting potential associations with perinatal outcomes.

Hair cortisol levels decrease as children age, stabilizing around age 4.

This case report highlights a novel NR5A1 gene variant associated with a severe 46,XY disorder of sex development, stressing the importance of genetic screening in similar cases.