Higher PD-1 levels mean fewer CD8+ T cells in alopecia areata hair follicles.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” The study suggests that a specific type of immune cell, memory-like NK cells, may increase during active hair loss in Alopecia areata.
A man with a rare lung-focused form of hypereosinophilic syndrome improved with steroid treatment.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” The research identified unique metabolic activities in immune cells associated with hair loss in Alopecia Areata.
March 2014 in “Journal of the American Academy of Dermatology” Alopecia areata is relatively common in children, has a variable course, and shows different responses to treatment; thyroid testing is recommended for those affected.
20 citations
,
September 2018 in “Journal of cutaneous pathology” Different skin diseases show unique patterns of skin cell separation, cell death, and granular layer changes.
September 2023 in “JAAD case reports” A man developed oral hairy leukoplakia while on baricitinib, a medication for alopecia and arthritis, and doctors should watch for such side effects.
December 2023 in “The Sri Lanka Journal of Dermatology” A 12-year-old girl's hair loss was linked to a rare genetic condition called ALX4-related frontonasal dysplasia.
1 citations
,
April 2019 in “JAAD case reports” A woman with lymphoma had a rare skin rash on her scalp and forehead, which was hard to diagnose but responded well to treatment.
Baricitinib may reactivate trichilemmal cysts in people with a history of these cysts.
3 citations
,
January 2019 in “Skin Appendage Disorders” People with alopecia areata may also have allergic rhinitis and should be checked for respiratory allergies.
4 citations
,
November 2016 in “Journal of Cutaneous Pathology” Three characteristics of plasmacytoid dendritic cells help tell apart lupus-related hair loss from LPP.
5 citations
,
January 1999 in “Pediatric Dermatology” A young girl had both alopecia areata and immune thrombocytopenic purpura at the same time, suggesting a possible link between the two.
1 citations
,
May 2025 in “Clinical Reviews in Allergy & Immunology” 24 citations
,
January 1985 in “Dermatology” Higher levels of certain immune cells in hair follicles may contribute to alopecia areata.
April 2018 in “Veterinary Pathology” Tigers had a skin condition causing hair loss and inflammation, but the cause is unknown and treatment didn't work.
9 citations
,
May 1996 in “Pediatric Dermatology” Alopecia areata and lichen planus can occur together in children, which is important for diagnosis and treatment.
7 citations
,
May 2005 in “Experimental Dermatology” Two mouse mutations cause similar hair loss despite different skin changes.
48 citations
,
September 2011 in “British Journal of Dermatology” Epigenetic changes in blood cells may contribute to alopecia areata.
April 2023 in “Journal of Investigative Dermatology” The research developed methods to test drugs that could protect and restore hair follicle protection in a hair loss condition.
January 2011 in “Repository KITopen (Karlsruhe Institute of Technology)” Blocking certain proteins on immune cells may help treat alopecia areata.
2 citations
,
February 2014 in “Hair therapy & transplantation” Alopecia Areata is an autoimmune condition causing hair loss, influenced by genetics, environment, and possibly improved by anti-MIF therapy, with many patients experiencing regrowth within a year.
23 citations
,
February 2003 in “British Journal of Dermatology” A rare type of skin lymphoma was identified, affecting hair follicles and sweat glands.
6 citations
,
March 2005 in “Clinical and Experimental Dermatology” Autoimmunity can cause both alopecia areata and idiopathic primary hypophysitis.
September 2021 in “CRC Press eBooks” Alopecia areata incognita causes sudden hair thinning, responds well to steroids, and is more common in those with genetic hair loss conditions.
2 citations
,
January 2022 in “Boletín médico del Hospital infantil de México/Boletín médico del Hospital Infantil de México” Some immunosuppressed patients can get unusual skin infections from Malassezia, which can be treated with antifungal medication.
November 2025 in “SKIN The Journal of Cutaneous Medicine” Ritlecitinib is generally safe for adolescents with alopecia areata over 5 years.
1 citations
,
February 2013 in “Clinical pediatrics” The baby’s hair loss was due to a rare genetic condition, not treatable by usual methods.
December 2023 in “Minia Journal of Medical Research” Transverse sectioning is more reliable for diagnosing alopecia areata.
December 2020 in “Galen Medical Journal” Alopecia patients have more mast cells in their scalps, especially in severe cases and older age, with alopecia areata showing the highest increase.