July 2025 in “Reproductive Biology and Endocrinology” This study found that early postnatal androgen activity affects the long-term expression of hormone receptors differently in female Wistar rats, influencing neural system programming during development.
28 citations
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May 2014 in “PubMed” This study found that increased hair cortisol levels, indicating stress, were associated with greater hair loss in captive rhesus macaques, although the causality of this relationship remains unclear.
7 citations
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May 2021 in “General and comparative endocrinology” This study concluded that qiviut cortisol can be used as a measure of HPA axis activity in muskoxen, with hair growth phase and body region affecting cortisol levels.
4 citations
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August 2021 in “Theriogenology” This study found that blocking neurosteroid synthesis in pregnant sheep increased HPA axis activity, particularly under stress, suggesting neurosteroids help modulate stress response.
1 citations
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October 2021 in “Endokrynologia Polska” This study observed that levothyroxine therapy in men with autoimmune hypothyroidism was less effective at reducing thyroid antibodies and hormone disruptions in those with early-onset androgenetic alopecia compared to those without hair loss.