30 citations,
July 2004 in “Fertility and Sterility” Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.
2 citations,
September 2018 in “Tissue Engineering Part A” Xeno-free three-dimensional stem cell masses are safe and effective for improving blood flow and tissue repair in limb ischemia.
55 citations,
January 2007 in “Climacteric” Menopause and aging can affect women's quality of life and sexuality, but hormone therapies may help alleviate these issues.
[object Object] 170 citations,
May 1979 in “The journal of pediatrics/The Journal of pediatrics” Two sisters with rickets and hair loss had a genetic issue with vitamin D processing, and only improved when given phosphorus supplements.
6 citations,
April 2010 in “Journal of Dermatological Science” Laminin-511 may help promote hair growth, while laminin-332 does not affect hair loss.
1 citations,
December 2015 in “The Egyptian Journal of Histology” Hypothyroidism harms rat skin, but topical triiodothyronine may help improve it.
[object Object] 
185 citations,
December 2011 in “Molecular and cellular endocrinology” Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.