March 2024 in “Journal of Applied and Natural Science” This study found that administering an alcoholic extract of Mentha spicata leaves significantly reduced testosterone levels and aggressive behavior in female rats with elevated testosterone, suggesting its potential protective role against such symptoms.
August 2015 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia/Arquivo brasileiro de medicina veterinária e zootecnia” This study found that maternal caffeine intake during gestation and lactation can lead to skin lesions like hypotrichosis and alopecia in both mother and offspring rats, irrespective of maternal cortisol levels.
22 citations
,
September 2015 in “Fertility and Sterility” In this study, abnormal glucose tolerance was found to be prevalent among young Indian women with PCOS, and the use of an oral glucose tolerance test significantly improved its detection.
April 2026 in “Frontiers in Veterinary Science” This study observed that in privately owned, intact cats, male cats exhibited significantly higher long-term hair cortisol concentrations compared to females, while environmental and behavioral factors did not significantly impact cortisol levels, suggesting individual traits may influence stress markers more than external factors.
July 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” In this review, researchers examined the concentration of cortisol in scalp hair of individuals with alopecia areata to explore its relationship with disease variables, as cortisol in hair can indicate chronic stress, which may impact alopecia areata pathogenesis.
16 citations
,
June 2017 in “PLoS ONE” This small study reports that a 6-group geometric classification method is more reliable for classifying human hair curl, although a digital system could further reduce errors.
30 citations
,
March 2001 in “Environmental Health Perspectives” This review explores the significant impacts of hormonal changes within normal physiological ranges and suggests examining low-dose effects from chemicals disrupting hormonal activity; it presents no new clinical results.
22 citations
,
November 2011 in “Journal of Analytical Toxicology” This review discusses the relevance of human androgen receptor action in sports doping and examines the potential of cell-based biological assays for detecting androgenic anabolic steroid use, without presenting new research findings.
2 citations
,
March 2001 in “Environmental Health Perspectives” Small hormonal imbalances can cause significant health problems, so more sensitive testing for hormone-disrupting chemicals is needed.
August 2025 in “Tropical Journal of Natural Product Research” This study found that aerosols formulated with celery extract and candlenut oil significantly stimulated hair growth in rabbits without causing skin irritation, suggesting their potential as natural and safe alternatives for treating alopecia.
February 2017 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Hair cortisol measurement is a promising, non-invasive tool for monitoring cortisol exposure over time.
55 citations
,
August 2008 in “Reviews in endocrine and metabolic disorders” This review discusses clinical, hormonal, and genetic aspects of nonclassic adrenal hyperplasia and reports no new findings; the condition is highlighted as a potential cause of premature adrenarche and other symptoms in young people.
47 citations
,
September 2016 in “Reviews in endocrine and metabolic disorders” This review discusses the steroidogenic properties of human skin and suggests that impaired steroidogenesis may be linked to conditions like acne, rosacea, atopic dermatitis, and androgenic alopecia, but reports no new clinical results.
23 citations
,
March 2009 in “Skin Pharmacology and Physiology” 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.
13 citations
,
December 2010 in “Nature Reviews Endocrinology” A young man with an eating disorder had a life-threatening adrenal crisis due to an autoimmune condition, highlighting the need for better education on managing hormone treatments.
12 citations
,
March 2018 in “Medicine” This case report describes a 60-year-old woman with an ovarian Leydig cell tumor leading to elevated testosterone levels and hirsutism, highlighting the need to consider androgen-secreting tumors in similar postmenopausal cases.
11 citations
,
May 2020 in “Frontiers in psychiatry” This study found that experiencing childhood abuse is associated with higher BMI, but hair cortisol and cortisone do not mediate this relationship.
1 citations
,
September 2020 in “Endocrinology, Diabetes & Metabolism Case Reports” This case report describes a woman with hypertension, alopecia, and other symptoms, revealing that her condition was due to ovarian hyperthecosis, highlighting the overlap of adrenal and ovarian disorders.
1 citations
,
January 2013 in “Journal of S C C J” This study suggests that scalp massage may reduce stress, as indicated by decreased salivary cortisol and increased secretory immunoglobulin A, and improve comfort by reducing physical fatigue and negative emotions.
1 citations
,
June 2023 in “Psychoneuroendocrinology” This study found that sexual trauma, particularly occurring between ages 5-7, was significantly associated with blunted hair cortisol levels, revealing a potential critical developmental stage affecting HPA axis function. No significant link was observed between cortisol reactivity and other adverse childhood experiences or stressors.
237 citations
,
September 2018 in “Clinical Biochemistry” Hair cortisol analysis can help diagnose stress-related conditions but needs more refinement for widespread use.
9 citations
,
April 2020 in “Endocrinology, diabetes & metabolism case reports” This case study highlights the significance of early diagnosis and treatment of Cushing's syndrome during pregnancy, as it is associated with severe maternal and fetal complications, including stillbirth.
14 citations
,
December 2010 in “Seminars in Oncology” This review discusses the diagnostic challenges of androgen and estrogen-secreting adrenal tumors and highlights that the presence of metastases is the most reliable indicator of malignancy; it reports no new clinical findings.
3 citations
,
May 2011 in “Journal of Obstetrics and Gynaecology” This review discusses the characteristics of benign biphasic ovarian neoplasms called adenofibromas and reports no new clinical findings.
May 2006 in “Women's Health Medicine” This review examines the causes, assessment, and treatments of hirsutism and highlights the need for future research in managing this condition but presents no new research findings.
393 citations
,
November 2000 in “Archives of General Psychiatry” This review discusses the neurobiology of sexual function and reports no new results; the authors cover multiple endocrine and neurotransmitter influences on sexual desire, arousal, and orgasm stages.
199 citations
,
July 2007 in “General and Comparative Endocrinology” 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.
183 citations
,
March 1982 in “JAMA” This study reported that spironolactone at 200 mg/day significantly improved facial hair growth in women with hirsutism and showed a sustained reduction in ovarian androgens over one year.
56 citations
,
December 2011 in “Steroids” This review discusses the genetics and variable phenotypic expression of nonclassic congenital adrenal hyperplasia, and reports no new clinical results; the authors call for further research on long-term health impacts and treatment strategies.
47 citations
,
January 2016 in “MethodsX” This study found that while the reproducibility of hair cortisol measurements in captive chimpanzees was high, the fineness of homogenized hair, sample weight, and extraction time influenced absolute cortisol concentrations.