113 citations
,
June 2010 in “Biological Chemistry” Cathepsin L deficiency causes large, abnormal cell structures and health issues in mice.
4 citations
,
November 2025 in “Nature Reviews Disease Primers” 13 citations
,
March 2000 in “Veterinary Dermatology” Dogs have a skin condition like human pseudopelade, causing hair loss that doesn't improve with treatment.
4 citations
,
September 1992 in “Journal of Small Animal Practice” A French bulldog had sparse hair due to a condition similar to that seen in Chinese crested dogs.
9 citations
,
January 2002 in “Dermatology” Reduced CD44 expression may cause abnormal hyaluronate buildup in cutaneous myxoma.
3 citations
,
April 2016 in “International Journal of Dermatology” A young man was diagnosed with trichoepitheliomas, causing thick skin and hair loss.
10 citations
,
September 2007 in “Pediatrics in Review” Gynecomastia and premature thelarche often resolve naturally but need evaluation to rule out serious issues.
25 citations
,
October 1975 in “Journal of Cutaneous Pathology” Hair growth in alopecia areata is hindered due to impaired cell activity in the surrounding tissue.
May 2024 in “Australasian journal of dermatology” A man with a type of skin lymphoma had unusual yellowish skin growths despite normal blood lipid levels, and treatment reduced some symptoms but not the growths.
56 citations
,
July 2004 in “Mechanisms of Development” Pax9 is crucial for proper tongue surface development and preventing skin-like changes.
July 2025 in “Foundation University Journal of Dentistry” Alopecia areata patients often have autoimmune disorders, especially thyroid issues.
A white-tailed deer fawn in South Dakota was the first cervid found with congenital hypotrichosis, a condition causing sparse or missing hair.
13 citations
,
July 2012 in “International Journal of Trichology” TTD symptoms vary widely, requiring thorough evaluations.
April 2018 in “Journal of Investigative Dermatology” DNMT3A is crucial for healthy skin and hair growth.
8 citations
,
August 2016 in “Journal of Cutaneous Pathology” Scalp biopsies are crucial for diagnosing hair loss causes in cutaneous lymphoma patients.
4 citations
,
April 1983 in “The Journal of Dermatology” A 15-year-old girl with hypothyroidism had excess hair and skin issues due to blocked hair follicles.
July 1997 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” TGF-β is found in hair follicles and may cause hair loss in alopecia areata.
3 citations
,
July 2024 in “Cell Proliferation” Blocking TGFβ can help treat fibrotic skin conditions by promoting fat cell formation.
70 citations
,
August 2006 in “Cancer Research” AP-1 controls tumor cell type by affecting key signaling pathways.
211 citations
,
February 1994 in “Proceedings of the National Academy of Sciences” Too much parathyroid hormone-related protein in skin disrupts hair growth in mice.
13 citations
,
September 1997 in “Archives of Dermatology” The boy likely has a fungal infection causing hair loss.
1 citations
,
November 2022 in “Diagnostics” A woman with a rare hormone resistance condition also had missing teeth and hair loss, which might be new symptoms of her genetic disorder.
15 citations
,
May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
January 2026 in “Acta Dermato Venereologica” Dupilumab effectively treats severe skin issues in a rare genetic disorder.
Inhibiting AP-1 changes skin tumor types and affects tumor cell identity.
March 2023 in “European journal of internal medicine” The patient's long-term symptoms were due to Sheehan's syndrome, which improved with hormone therapy.
3 citations
,
April 2020 in “American Journal of Case Reports” A new mutation in the HJV gene was found in a young woman with juvenile hemochromatosis, causing unusual symptoms like secondary hypothyroidism.
October 2024 in “Eurasian Journal of Medicine” Hashimoto’s thyroiditis is more common in girls, often after puberty, and can cause neck swelling, fatigue, and hair loss.
16 citations
,
November 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Blocking interferon-gamma helps prevent and treat hair loss in Alopecia Areata.
45 citations
,
December 2014 in “Journal of the European Academy of Dermatology and Venereology” Plasmacytoid dendritic cells are a key factor in causing hair loss in alopecia areata and could help differentiate it from other hair loss conditions.