14 citations
,
May 2022 in “Frontiers in Endocrinology” Lower testosterone levels increase kidney stone risk in men over 40.
10 citations
,
February 2020 in “Endocrine” Finasteride safely treats hair loss without harming hormones or reproduction, but may slightly reduce sexual function.
3 citations
,
November 2022 in “Baghdad Journal of Biochemistry and Applied Biological Sciences” Women with PCOS have higher renin and d-dimer levels, especially if they have COVID-19.
September 2024 in “African Journal of Biomedical Research” Alopecia areata patients have lower vitamin D and slightly lower copper levels, so these should be checked.
June 1995 in “International Journal of Gynecology & Obstetrics” Women with hair loss have higher androgen levels, while men with early balding have altered androgen ratios.
32 citations
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January 1990 in “Clinical Endocrinology” Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
4 citations
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August 2024 in “PLoS ONE” Both injectable contraceptives lower testosterone and SHBG levels, with NET-EN having a greater effect than DMPA-IM.
15 citations
,
January 2018 in “Indian Journal of Dermatology” Women with androgenetic alopecia have lower zinc and iron levels.
5 citations
,
December 2024 in “Journal of Cosmetic Dermatology” Vitamin D and zinc may help treat alopecia areata.
1 citations
,
August 2013 in “PubMed” Testosterone changes reduce thyroxin levels in rats.
January 2024 in “Biological trace element research” Isotretinoin affects trace element levels and requires monitoring of liver and kidney functions.
December 2018 in “Journal of Advances in VetBio Science and Techniques” Low testosterone might be a common cause of hair loss in male dogs.
8 citations
,
July 2022 in “Metabolites” Higher uric acid levels are linked to fewer urinary symptoms in healthy Korean men.
5 citations
,
March 2019 in “International Journal of Endocrinology” Exercise and finasteride together improve ovary health in PCOS rats.
3 citations
,
February 2018 in “Human Reproduction” A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
January 2025 in “Journal of the Egyptian Womenʼs Dermatologic Society” Higher substance P levels may cause discomfort in hair loss patients.
5 citations
,
November 1999 in “Medical Hypotheses” Minoxidil, a common hair loss treatment, might work by counteracting a hormone that reduces hair growth and promotes hair loss.
155 citations
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March 2006 in “The American Journal of Medicine” Women with PCOS have heart-related issues not because of obesity, but due to insulin resistance and low adiponectin levels.
1 citations
,
January 2020 in “Egyptian Journal of Dermatology and Venereology” Higher testosterone and DHT levels are linked to hair loss in men, but not to prostate cancer risk.
1 citations
,
June 2024 in “Rehabilitation Medicine” Higher cortisol and cortisone levels in hair may predict mood disorders after a stroke.
1 citations
,
January 2023 in “Journal of Obstetrics and Gynaecology” High DHEA and short cervical length in women with PCOS and recurrent miscarriages may harm pregnancy outcomes.
March 2024 in “BMC women's health” The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.
July 2025 in “The Egyptian Journal of Hospital Medicine” Estrogen affects hair growth, and GPER-1 levels might help identify hair loss types.
August 2019 in “Journal of Dermatology” Woman with diabetes had hair loss due to rare ovarian tumor; surgery improved hair growth.
27 citations
,
March 2012 in “Dermatologic Therapy” Taking zinc supplements can help improve or cure hair loss caused by zinc deficiency.
June 2017 in “Acta Scientiae Veterinariae” A cat with a rare pancreatic tumor and diabetes died despite treatment, showing similar symptoms to a human condition.
35 citations
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February 1994 in “Fundamental and applied toxicology” High doses of finasteride cause cell growth and tumors in mice.
3 citations
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January 1994 in “Toxicological Sciences” Finasteride causes abnormal growth in male mice cells at high doses.
49 citations
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February 2009 in “Maturitas” Short-term testosterone therapy in women seems safe with few mild side effects, but long-term effects need more research.
October 2025 in “Medical Journal of Babylon” Higher testosterone and lower Vitamin D levels are linked to hair loss in female COVID-19 patients.