51 citations
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November 2005 in “Journal of Medical Primatology” Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.
January 2026 in “Phaidra - Repository of the University of Veterinary Medicine, Vienna” Hair cortisol levels in wolves reflect stress and vary by season and body region.
February 2023 in “Malaysian Journal of Science. Series B, Physical & Earth Sciences” Analyzing bear poop helps measure their stress without harming them.
2 citations
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May 2021 in “Scientific Reports” Stress is likely causing hair loss in Formosan macaques.
1 citations
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November 2022 in “Nutrients” Hair glucocorticoid levels and gut bacteria are linked to growth rates in piglets.
199 citations
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July 2007 in “General and Comparative Endocrinology” Hair cortisol can reliably indicate chronic stress in cats and dogs.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
5 citations
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May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
3 citations
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March 2017 in “Regulatory toxicology and pharmacology” Aleglitazar and its major metabolite are safe enough to proceed to Phase 3 clinical trials.
March 2022 in “VNU Journal of Science Medical and Pharmaceutical Sciences” A new method accurately measures nine steroid hormones in human serum with high sensitivity.
5 citations
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May 2017 in “Journal of the European Academy of Dermatology and Venereology” The study found no significant difference in stress hormone levels between people with alopecia areata and healthy individuals, suggesting that the disease is not caused by an overactive stress response system.
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
January 2017 in “Qucosa (Saxon State and University Library Dresden)” Plasma protein binding significantly affects glucocorticosteroid concentration in blood, saliva, and hair.
69 citations
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May 2016 in “General and Comparative Endocrinology” External factors can significantly affect hair cortisol levels, so it's not always a reliable stress marker.
296 citations
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October 2018 in “General and Comparative Endocrinology” Hair cortisol is a reliable way to measure long-term stress in animals.
189 citations
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January 2014 in “Journal of Visualized Experiments” Hair cortisol analysis effectively measures long-term stress.
22 citations
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May 2019 in “Animals” High hair cortisol levels indicate stress in cows due to poor shelter conditions and health issues.
11 citations
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April 2020 in “Animals” Moving horses to new places can increase their stress levels, as shown by higher stress hormone in their hair.
December 2025 in “Biology Bulletin Reviews” Hair cortisol can indicate animal stress but varies with many factors.
October 2025 in “Journal of Veterinary Diagnostic Investigation” Black hair in cats has higher cortisol levels than white hair.
90 citations
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July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
118 citations
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October 2014 in “Journal of Dairy Science” Tail switch hair is best for measuring cortisol in Holstein cows, with white hair and multiparous cows showing higher levels.
5 citations
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January 2021 in “PeerJ” Elephant tail-hair can show past stress levels, matching times when stressful events happened.
10 citations
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September 2019 in “Frontiers in Veterinary Science” Older steers have higher hair cortisol levels than younger steers.
28 citations
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May 2014 in “PubMed” Higher stress levels may be linked to hair loss in rhesus macaques.
2 citations
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February 2024 in “International journal of molecular sciences” Gut health affects skin diseases, and probiotics might help.
1 citations
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November 2023 in “Frontiers in veterinary science” Goat hair shows changes in metal levels and stress when goats move from indoors to mountain pastures.
72 citations
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July 2022 in “Frontiers in Systems Biology” Modern lifestyles harm beneficial microbes, affecting health.
June 2023 in “International journal of molecular sciences” Heat stress changes goats' skin and hair at the microscopic level and affects their genes and skin bacteria.
380 citations
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February 2023 in “Journal of Clinical Medicine” PCOS is influenced by various factors and may be managed by restoring gut health and using new therapies.