July 2022 in “Research Square (Research Square)” Lower PPARγ levels and specific gene variations are linked to more severe Frontal Fibrosing Alopecia.
67 citations
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April 2014 in “Biochemical Journal” Ceramide synthase 4 deficiency in mice leads to hair loss due to altered sebum lipids.
1 citations
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August 2017 in “The Journal of urology/The journal of urology” 5α-reductase inhibitors may increase the risk of depression and suicidal thoughts.
November 2022 in “Frontiers in pediatrics” A girl with skin rashes and low zinc levels improved with zinc supplements and had new gene mutations linked to her condition.
Arginine deficiency hinders hair growth in androgenetic alopecia, but restoring it can promote hair regeneration.
57 citations
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August 1997 in “Pediatrics International” VDDR I and II are genetic disorders affecting vitamin D use, causing rickets, with VDDR I treatable by vitamin D supplements and VDDR II needing high doses and calcium.
1 citations
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July 2024 in “Indian Journal of Case Reports” GAPO syndrome causes growth issues, hair loss, missing teeth, and vision problems.
30 citations
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October 2009 in “Journal of Veterinary Internal Medicine” A Pomeranian dog had rickets due to a new gene mutation, leading to severe symptoms and euthanasia.
1 citations
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February 2022 in “Terapevtičeskij arhiv” A young woman got liver damage from taking too much vitamin A for two years.
1 citations
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February 2023 in “Pediatrician (St Petersburg)” Early iron deficiency can lead to anemia during puberty, so it's important to address it early.
20 citations
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December 2011 in “Journal of inherited metabolic disease” Valproic acid treatment increases a specific acid in urine by blocking an enzyme, possibly causing skin rash and hair loss.
January 2026 in “Figshare” Finasteride can cause melasma, especially in people with darker skin.
7 citations
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July 2020 in “Immunological Investigations” The rs231775 genetic variant is linked to a higher risk and severity of Alopecia Areata in males.
1 citations
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October 2022 in “Veterinary pathology” Some canine hair follicle tumors contain amyloid deposits, with a protein called CK5 involved in their formation.
January 1994 in “Toxicological Sciences” Lower dosages of 2-(difluoromethyl)-dl-ornithine might reduce side effects, supporting further research.
372 citations
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December 2004 in “Nature Genetics” 35 citations
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August 2006 in “Molecular genetics and metabolism” Tissue-specific variation in mutant load complicates genetic counseling and prenatal diagnosis.
The role of 5α-reductase-3 in prostate cancer is unclear and needs more research.
13 citations
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June 2010 in “Journal of The American Academy of Dermatology” A man with Cronkhite-Canada syndrome had all 20 nails detach but improved with treatment.
3 citations
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May 1990 in “Journal of Steroid Biochemistry” Some women with excess hair growth have a hormone condition that can't be diagnosed by blood or urine tests alone.
May 2025 in “Frontiers in Genetics” A new genetic variant in the LIPH gene causes hair growth issues in a Chinese patient.
June 2025 in “Molecular Genetics & Genomic Medicine” Severe genetic variants in children with a specific adrenal condition match predicted symptoms well, but milder variants do not.
July 2022 in “International Journal of Contemporary Medicine” Lower Paraoxonase 1 levels in alopecia areata patients suggest antioxidant treatment might help.
2 citations
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July 2025 in “BMC Women s Health” Iron deficiency causes many symptoms, and transferrin saturation is a better diagnostic marker than hemoglobin.
4 citations
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June 2024 in “The Kaohsiung Journal of Medical Sciences” Atg5 can promote tumors when autophagy is deficient but suppresses them under normal conditions.
October 2024 in “Frontiers in Nutrition” Vitamin D deficiency is common in people with certain types of hair loss, like alopecia areata and female pattern hair loss.
26 citations
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June 2003 in “PubMed” Alpha-difluoromethylornithine prevents cancer in mice but causes hair loss.
March 2026 in “International Journal of Clinical Dermatology” Iron deficiency can cause certain skin issues like eczematous hand and perioral lesions.
2 citations
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April 2019 in “Acta medica Philippina/Acta Medica Philippina” People with alopecia areata often have lower vitamin D levels than healthy people.
July 2023 in “Dermatology and Therapy” 5-Alpha Reductase Inhibitors are effective for male hair loss and some skin conditions, but their effectiveness in women and safety concerns require careful use.