December 2019 in “Mehmet Akif Ersoy Üniversitesi Sağlık Bilimleri Enstitüsü dergisi” One cat with low thyroid hormone had growth issues, and another with high thyroid hormone had skin problems; both got better with treatment.
123 citations,
September 1987 in “JAMA” IL-2 treatment causes skin eruptions and other reversible side effects, and may play a role in psoriasis.
3 citations,
June 2018 in “The New England Journal of Medicine” A woman with Cushing's syndrome improved after surgery to remove a tumor causing the condition.
3 citations,
December 2016 in “PubMed” Menstrual abnormalities in PCOS women may not greatly affect their metabolic and hormonal profile.
September 2024 in “Medicina” Certain gene variations may protect against skin issues and oxidative stress in women with PCOS.
122 citations,
October 2013 in “PEDIATRICS” Maternal stress during pregnancy affects a child's stress levels.
80 citations,
January 2011 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Hair cortisol levels can reflect salivary cortisol levels in humans.
50 citations,
February 2021 in “Physiology & behavior” People with depression often have higher hair cortisol levels, while those with PTSD tend to have lower levels, but more research is needed to understand this fully.
44 citations,
February 2016 in “Zoology” Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.
16 citations,
January 2021 in “Frontiers in veterinary science” Pigs in farrowing crates and loose-housing systems showed no difference in chronic stress levels as measured by hair cortisol.
11 citations,
February 2005 in “Clinical pharmacology and therapeutics/Clinical pharmacology & therapeutics” Hair cortisol could be a marker for chronic stress in pregnancy, but depression affects cortisol levels differently.
5 citations,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
5 citations,
June 2020 in “Therapeutic drug monitoring” Hair sample weight is a better measure for cortisol levels in hair than hair protein concentration.
4 citations,
October 2020 in “Therapeutic drug monitoring” Lower tacrolimus levels (4-7 ng/mL) after liver transplant may be safe and improve graft and kidney function.
3 citations,
November 2021 in “Stress” Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.
2 citations,
June 2022 in “Scientific reports” Women with PCOS have higher hair cortisol levels, which are linked to worse metabolic and inflammatory conditions.
1 citations,
July 2023 in “Psychoneuroendocrinology” Hair cortisol is a reliable marker of long-term cortisol levels and is linked to daytime saliva cortisol but not morning levels.
1 citations,
June 2023 in “Psychoneuroendocrinology” Childhood sexual trauma, especially between ages 5-7, is linked to lower cortisol levels in adult hair, suggesting long-term stress response changes.
1 citations,
December 2021 in “American Journal of Obstetrics and Gynecology” Hair cortisol levels peak in the third trimester and decline postpartum.
July 2024 in “Nursing Research” Hair and nail cortisol levels can show long-term stress in young males.
February 2024 in “Psychoneuroendocrinology” Mothers with lower stress during pregnancy but higher stress after birth had infants with lower development scores.
May 2023 in “General and comparative endocrinology” Monkey hair cortisol levels are not affected by how fast their hair grows.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
November 2022 in “Innovation in aging” Older adults in Puerto Rico often couldn't be tested for hair cortisol due to refusal or lack of hair, with race and hair products affecting results.
September 2021 in “Psychoneuroendocrinology” Nurses had higher stress levels during intense phases of the COVID-19 pandemic.
August 2021 in “Asian Journal of Pharmaceutical and Clinical Research” Plant extracts in shampoo improved hair thickness and density in men with hair loss.
12 citations,
December 2020 in “Comprehensive psychoneuroendocrinology” Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
8 citations,
November 2020 in “Infant behavior & development” Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.
February 2024 in “Psychoneuroendocrinology” Higher anxiety during pregnancy is linked to lower cortisol levels in newborns' hair.
February 2024 in “Psychoneuroendocrinology” Higher prenatal anxiety is linked to lower cortisol levels in newborns' hair.