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GlossaryPerifollicular Lymphocytic Infiltrate

presence of immune cells around hair follicles

Perifollicular Lymphocytic Infiltrate refers to the presence of immune cells, specifically lymphocytes, around hair follicles. This condition is often seen in various types of hair loss disorders, such as alopecia areata, where the immune system mistakenly attacks the hair follicles, leading to hair loss.

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Research

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research Perifollicular inflammation and follicular spongiosis in androgenetic alopecia

1 citations , September 2021 in “Journal of The American Academy of Dermatology”

Hair loss in both Androgenetic Alopecia and Alopecia Areata is often accompanied by inflammation around hair follicles, but the location and severity of this inflammation varies.

research Alopecia areata with lymphocytic mural folliculitis affecting the isthmus in a thoroughbred mare

14 citations , August 2004 in “Veterinary Dermatology”

The horse had a rare type of hair loss caused by immune cells attacking hair follicles.

Perifollicular Inflammation and Fibrosis in Androgenetic Alopecia: Implications for Diagnosis and Treatment - A Comparative Histopathologic and Clinical Study with Normal-Appearing Scalp

research Perifollicular Inflammation and Fibrosis in Androgenetic Alopecia: Implications for Diagnosis and Treatment - A Comparative Histopathologic and Clinical Study with Normal-Appearing Scalp

January 2026 in “Clinical Cosmetic and Investigational Dermatology”

Early diagnosis and targeted anti-inflammatory treatments can improve outcomes in androgenetic alopecia with perifollicular inflammation and fibrosis.

research The Functional Relevance of the Type 1 Cytokines IFN-γ and IL-2 in Alopecia Areata of C3H/HeJ Mice

20 citations , November 2005 in “Journal of Investigative Dermatology Symposium Proceedings”

IFN-γ and IL-2 are important for T cell activation in hair loss in mice.

research Alopecia Mucinosa

20 citations , April 1959 in “A M A Archives of Dermatology”

Alopecia mucinosa causes red, raised skin patches and hair loss.

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community Perifollicular Fibrosis and its role in androgenetic alopecia. Is Aminexil/Kopexil a must for anyone with AGA?

in Research/Science 4 upvotes 4 years ago

Aminexil/Kopexil may help reduce hair loss by addressing perifollicular fibrosis in androgenetic alopecia, but it lacks the extensive clinical backing of finasteride and minoxidil. Some users find it effective, but availability and cost are issues, especially in the US where it's not FDA-approved.

community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

in Research 830 upvotes 2 years ago

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

community DHT Harms Scalp Microbiome: DHT Itch is REAL

in Research/Science 410 upvotes 1 year ago

Increased Malassezia and Cutibacterium in the scalp microbiome are linked to higher sebum production and inflammation in androgenetic alopecia (AGA). Treatments include ciclopirox shampoo, benzoyl peroxide shampoo, clobetasol propionate, calcipotriol, minoxidil, finasteride, and dutasteride.

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