January 2008 in “Anhui nongye kexue” In this study, researchers established a model using Mongolia Sheep hair follicles to investigate growth mechanisms, noting that adding insulin and hydrocortisone helped maintain follicle shape during extended culture.
3 citations
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January 2016 in “International Journal of Trichology” This study found that soluble factors secreted by ovine dermal papilla cells enhance the aggregative behavior of human dermal papilla cells, potentially improving their follicle-inductive properties for hair replacement therapy.
1 citations
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January 1995 in “Lincoln University Research Archive (Lincoln University)” In this study, researchers found that wool growth regulation is likely achieved through endocrine growth factors, with various growth factors inhibiting fibre growth in vitro.
31 citations
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November 1965 in “Journal of Mammalogy” This study found that in mink, the pituitary gland is essential for normal seasonal pelage cycles, and manipulating hormone levels can affect hair growth and type.
9 citations
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April 2018 in “Biology of reproduction” This study concluded that dietary changes alter serum progesterone and estradiol levels in late gestation ewes, likely due to metabolism rather than changes in placental steroid synthesis.