19 citations
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May 2004 in “The American Journal of Dermatopathology” The research found that a specific gene mutation causes fewer hair follicles and disrupted hair growth cycles, leading to thin and short hair in people with Hypotrichosis with Juvenile Macular Dystrophy.
Problems with arginine processing in hair follicles might contribute to common hair loss, and arginine supplements could help treat it.
21 citations
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June 1991 in “Journal of Inherited Metabolic Disease” Selenium deficiency caused symptoms in a child, which improved with selenium supplements.
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September 2019 in “Journal of clinical sleep medicine” Vitamin B12 deficiency can rarely cause excessive daytime sleepiness.
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November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.
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January 1994 in “Dermatology” The patient's hair had unique damage and a lower sulfur-to-nitrogen ratio compared to relatives, but not compared to healthy controls.
January 2018 in “Elsevier eBooks” 5α-reductase-2 deficiency causes ambiguous genitalia at birth and affects male sexual development, but individuals often develop male characteristics at puberty.
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June 2016 in “Clinical and Experimental Dermatology” Increasing isoleucine intake improved skin and health issues in an infant with maple syrup urine disease.
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December 1997 in “Developmental Medicine & Child Neurology” Biotinidase deficiency can cause vision and walking problems in children and can improve with biotin treatment.
24 citations
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July 1979 in “Archives of Dermatology” Patients with renal disease may develop vitamin A toxicity even with low-dose supplements.
October 2022 in “Journal of advanced research in medicine” A woman with Sheehan syndrome improved with hormone treatment.
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May 2020 in “Psychoneuroendocrinology” People with Parkinson's disease have higher levels of cortisone in their hair, which may indicate chronic stress hormone dysfunction.
June 2026 in “The Journal of Steroid Biochemistry and Molecular Biology” 26 citations
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January 1982 in “Hormone Research” Normal androgen levels need ACTH, and different mechanisms control adrenarche and gonadarche.
32 citations
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April 2001 in “Experimental Eye Research” Zinc is essential for healthy optic nerves, and its deficiency can damage them.
August 2023 in “Dermatology reports” A baby with maple syrup urine disease improved from skin problems by adjusting his diet to correct amino acid levels.
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January 1990 in “The Journal of Pediatrics” Children with partial biotinidase deficiency are healthy at birth but may develop symptoms that improve with biotin therapy.
15 citations
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August 1991 in “American Journal of Medical Genetics” A special diet can fix hair problems in argininosuccinase deficiency.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Hair changes could indicate neurological diseases and help monitor treatment.
4 citations
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April 2017 in “F1000Research” Mitochondrial problems in diabetic nerve damage might cause pain by lowering the production of certain nerve-related steroids.
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March 2014 in “British journal of dermatology/British journal of dermatology, Supplement” Alopecia areata patients often have low vitamin D levels, suggesting they might benefit from vitamin D supplements.
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July 1997 in “The Lancet” Scientists found a new protein, AMY117, common in Alzheimer's patients, which could be important for treatment and diagnosis.
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February 2002 in “PubMed” A new gene mutation causes hereditary coproporphyria with reduced enzyme activity.
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October 2016 in “Psychoneuroendocrinology” Finasteride affects brain processes related to neurotransmission and metabolism, potentially helping with neuropsychiatric conditions.
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July 2015 in “International Journal of Dermatology” A new DSG4 gene mutation causes hair defects in a young girl.
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August 2006 in “PubMed” A genetic defect causes males in some Mediterranean populations to be born with ambiguous genitalia and develop male traits at puberty.
July 1993 in “学術講演梗概集. A, 材料施工,防火,海洋,情報システム技術” Evaluate prolactin levels with androgen and thyroid tests to rule out endocrine issues in patients with SAHA syndrome symptoms.
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September 2019 in “Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity” A woman with anorexia nervosa improved after treatment for pellagra, reminding doctors to check for this deficiency in patients with eating disorders.