18 citations
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January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
54 citations
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May 2001 in “Journal of Investigative Dermatology” Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
19 citations
,
January 2007 in “Biological & pharmaceutical bulletin” Glycine reduces skin pigmentation by lowering melanin production.
52 citations
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November 2003 in “Journal of Investigative Dermatology” Different harmful mutations in the CDH3 gene cause HJMD, but symptoms vary among individuals.
16 citations
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January 2019 in “Aging” Lack of functional CYLD in mice leads to early aging and cancer.
9 citations
,
January 1975 in “Munich Personal RePEc Archive (Ludwig Maximilian University of Munich)” Rothmund-Thomson syndrome causes skin changes, hair loss, and slightly high lysine and cystine in urine.
August 2018 in “Zenodo (CERN European Organization for Nuclear Research)” Catalase in processed meats may increase cancer risk due to electromagnetic emissions.
23 citations
,
February 2020 in “PLOS genetics” Mice with LSS deficiency showed hair loss and cataracts, similar to humans, and can help in understanding and treating this condition.
10 citations
,
December 2008 in “Journal of Clinical Neuromuscular Disease” Finasteride can cause muscle pain and high creatine kinase levels, but stopping the medication may resolve symptoms.
1 citations
,
September 2002 in “European Journal of Endocrinology” Triple H syndrome exists and can vary in symptoms.
13 citations
,
March 1999 in “Biochemical Journal” Overexpressing SSAT in mice makes them highly sensitive to polyamine analogues, causing liver damage and high mortality.
January 2014 in “Progress of Digestive Endoscopy” Prednisolone improved symptoms in a woman with Cronkhite-Canada syndrome, but regular screenings are needed due to cancer risk.
4 citations
,
January 1989 in “Journal of Steroid Biochemistry” Women with hyperandrogenism have higher androgen levels and lower SHBG, which may contribute to conditions like excessive hair growth and early puberty.
5 citations
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February 2022 in “Supportive Care in Cancer” Older age is the main risk factor for hemorrhagic cystitis after stem cell transplants.
Copper levels in green hair decreased significantly after treatment.
July 2025 in “JAAD Case Reports” 6 citations
,
July 1980 in “PubMed” CF patients with growth issues have more zinc in their hair than those with normal growth.
April 2026 in “Journal of Experimental Psychopathology” This longitudinal case study examined hair cortisol concentration (HCC) as a biomarker for chronic stress in a female PhD student over nine years, comparing her data with a clinical outpatient sample (N = 33) and normative HCC data. Despite experiencing numerous stressful life events, the student's HCC levels were stable and similar to the clinical sample and norm, except for a significant increase during the first month of her PhD. She exhibited high resilience and problem-focused coping, with low avoidant coping. In the clinical sample, HCC was not linked to diagnosis, depression severity, or anxiety. The study suggests that HCC may not be a straightforward biomarker for psychological distress, as it is influenced by various methodological and behavioral factors.
10 citations
,
January 1997 in “Dermatology” Two siblings were diagnosed with Trichothiodystrophy, identified by brittle hair and low sulfur content.
19 citations
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August 2020 in “Gastroenterology report” There is no standard treatment for the rare Cronkhite–Canada syndrome, which can be fatal and lead to cancer.
17 citations
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November 1982 in “Annals of Internal Medicine” 5-aminosalicylic acid enemas may cause hair loss.
2 citations
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April 2008 in “PubMed” A gene mutation causes monilethrix in a Chinese family.
57 citations
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August 2002 in “American Journal Of Pathology” Cathepsin L deficiency causes hair and skin issues in mice.
116 citations
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April 1986 in “The journal of cell biology/The Journal of cell biology” Trichohyalin is a protein in hair follicles that helps form hair filaments.
January 2011 in “Reactions Weekly” January 1995 in “Journal of the Society of Cosmetic Chemists” Transglutaminase does not modify human hair.
47 citations
,
January 2019 in “Nature communications” Polyamines help fix DNA damage accurately in cells.
January 2012 in “The Year book of dermatology” A woman developed severe kidney injury from using simvastatin with ciclosporin, highlighting the need for careful monitoring when combining these drugs.
December 2024 in “European journal of medical research” 
4 citations
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November 2022 in “Acta dermato-venereologica” People with hidradenitis suppurativa often have lower vitamin D levels, weaker hip bones, and altered bone metabolism markers.