Endocrine therapy-induced hair loss (ETIHL)
Food for thought (no pun intended). I'm considering taking supplements (are they safe? contraindicated?) and looking for proven topical scalp treatments (waste of money?).
Started with this article: Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4864803/.
"Vitamin C may loco regionally reduces the HL ...when locally applied with an oil-based buffer that enables vitamin C to pass across the hair texture. (Where would we find that?)
Low levels of vitamin D in serum and/or lack of Vitamin D receptor have been found to be associated with HL ...However, it is still uncertain whether vitamin D supplementation increases the proliferation of hair follicles.
Vitamin E has been shown to decrease the effectiveness of estrogen in the breast tissue and low levels of vitamin E are also reported to be associated with increased levels of estrogen. However, according to the results of the SELECT study in which an increased rate of prostate cancer was reported, Vitamin E carried a potential androgenic and anti-estrogenic activity in patients receiving Vitamin E supplementation. (So that's good for BC patient, right?)
Folic acid is also reported to have a positive effect on hair health...However, unfortunately, there are some epidemiological studies that suggest folate may increase the tissue levels of estrogen, indicating that high levels of folic acid might lead to BC. (Sounds bad)
Oral supplementation of omega-3 and -6 fatty acids is also known to positively affect the prognosis of BC (Bartsch et al. 1999) and many other cancers and also increase the apoptosis of BC cells in tissue cultures. Additionally, it has been recently shown that 6 months after the use of these fatty acids were found to protect and improve the hair health through antioxidant effects on the scalp tissue. (Definitely sounds like a good one)
5-alpha reductase enzyme inhibitors (local cream or shampoo forms) could possibly be the most appropriate and potent treatment options in the treatment of ETIHL. (I've no idea, and am suspicious of product claims anyway - but is there a good one available?)