October 2025 in “Medical Journal of Babylon” Higher testosterone and lower Vitamin D levels are linked to hair loss in female COVID-19 patients.
September 2016 in “Journal of the Egyptian Women's Dermatologic Society (Print)” Higher RBP4 levels found in people with two types of hair loss.
February 2022 in “Mediators of Inflammation” Women with Polycystic Ovary Syndrome (PCOS) have lower levels of a substance called DIAPH1 in their blood, which is linked to changes in sugar metabolism and insulin resistance.
5 citations
,
January 2021 in “PeerJ” Elephant tail-hair can show past stress levels, matching times when stressful events happened.
58 citations
,
April 1998 in “Journal of biological chemistry/The Journal of biological chemistry” CYP2B12 enzyme in skin cells converts arachidonic acid into specific bioactive lipids.
29 citations
,
March 2010 in “Journal of Endocrinological Investigation” Lipocalin-2 levels are higher in women with PCOS and may indicate insulin resistance.
13 citations
,
April 2002 in “International Journal of Toxicology” The safety of placental and umbilical extracts in cosmetics is uncertain, requiring more research.
2 citations
,
April 2021 in “Asian pacific Journal of Tropical Biomedicine” Origanum vulgare leaf extract reduces liver and kidney damage caused by finasteride in mice.
December 2023 in “Trials” The trial is testing if a helmet that uses light can prevent hair loss during chemotherapy.
3 citations
,
January 2024 in “Liver International” Targeting thyroid hormone receptor α in liver cells may help treat liver fibrosis.
April 2022 in “International journal of respiratory and pulmonary medicine” People with lower levels of free testosterone tend to have worse COVID-19 outcomes.
126 citations
,
October 2012 in “PLoS ONE” Reduced cytokinin levels help plants adapt to low potassium by increasing root hair growth and potassium uptake.
48 citations
,
July 1996 in “Human & Experimental Toxicology” Human enzymes can detoxify harmful substances but might also increase their cancer risk.
26 citations
,
February 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” An enzyme other than TNAP might be responsible for vitamin B-6 metabolism in the skin.
September 2025 in “Indian Journal of Psychiatry” Valproic acid treatment may cause hair loss due to reduced biotinidase activity.
163 citations
,
November 2003 in “Journal of Investigative Dermatology” Low iron levels may be linked to some types of hair loss in women.
124 citations
,
November 2000 in “The journal of investigative dermatology/Journal of investigative dermatology” PAD3 plays a key role in hair and skin protein structure and may be linked to skin diseases.
91 citations
,
December 2017 in “Systems Biology in Reproductive Medicine” Lower SHBG levels may increase the risk of PCOS.
74 citations
,
January 2014 in “Journal of Investigative Dermatology” High kallistatin levels in diabetics worsen wound healing by blocking important cell signals.
28 citations
,
April 2014 in “Hormones” Higher androstenedione levels in women with PCOS are linked to more severe symptoms.
25 citations
,
January 2006 in “British Journal of Dermatology” Finasteride lowers scalp and blood DHT levels, potentially treating male-pattern baldness.
22 citations
,
February 2024 in “Heliyon” Exploring fermented foods from various regions can lead to discovering new fibrinolytic enzymes.
16 citations
,
May 2020 in “Psychoneuroendocrinology” People with Parkinson's disease have higher levels of cortisone in their hair, which may indicate chronic stress hormone dysfunction.
13 citations
,
December 2016 in “Egyptian Journal of Basic and Applied Sciences” Alopecia areata patients have lower vitamin D levels than healthy individuals.
13 citations
,
November 2014 in “Toxicology Letters” Finasteride affects UGT1A4 enzyme, but not enough to cause issues when combined with other drugs.
12 citations
,
August 2000 in “Fertility and Sterility” Topical finasteride doesn't reduce DHT levels, hinting at an endocrine role in hair loss.
5 citations
,
June 2024 in “Free Radical Biology and Medicine” Maintaining natural oxygen levels is crucial for healthy skin cells and effective treatments.
5 citations
,
April 2021 in “Journal of Endocrinological Investigation” Higher DHT levels are linked to fewer hypogonadism symptoms in men with normal testosterone levels.
1 citations
,
May 2013 in “Journal of the Egyptian Women's Dermatologic Society (Print)” Women with idiopathic hirsutism and PCOS have higher RBP4 levels, and PCOS is linked to greater insulin resistance; weight management may help both conditions.
December 2023 in “International journal of molecular sciences” Chromosomal differences affect how muscle cells respond to testosterone.