29 citations
,
September 2014 in “American Journal of Dermatopathology” This study found that horizontal sections of scalp biopsies in patients with Central Centrifugal Cicatricial Alopecia often reveal follicular miniaturization, inflammation, and scarring, which can guide personalized treatment.
701 citations
,
August 2014 in “Nature medicine” This study found that JAK inhibitors promote hair regrowth in both mice and human alopecia areata cases by blocking key immune pathways involved in disease development.
6 citations
,
December 2013 in “Journal of Cutaneous Pathology” This study found that the distribution of mast cell prostaglandin d-synthase in the scalp spatially aligns with the pattern of androgenetic alopecia, suggesting a programmed vulnerability to hair loss.
79 citations
,
December 2013 in “Journal of Investigative Dermatology Symposium Proceedings” This article proposes that alopecia areata may be caused by immune attacks on hair follicles after an immune privilege collapse, suggesting new therapeutic approaches targeting this immune response pattern.
30 citations
,
November 2013 in “Journal of The American Academy of Dermatology” This study reported that patterns of fibrosis identified through elastin staining may help distinguish specific forms of primary cicatricial alopecia in biopsy specimens, with certain patterns suggesting particular diagnoses.
18 citations
,
May 2013 in “Journal of The American Academy of Dermatology” This study concludes that elastic tissue staining is the most reliable method for identifying scarring patterns in alopecia biopsy specimens, and polarized microscopy may provide specific insights for nonscarring alopecia.
38 citations
,
December 2012 in “Journal of Cutaneous Pathology” This review discusses the significance of elastic tissue staining in dermatopathology, particularly for diagnosing primary elastic tissue disorders and other skin conditions, but reports no new clinical results.
205 citations
,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
44 citations
,
November 2011 in “The Journal of Dermatology” This review discusses recent advancements in the management and diagnosis of primary cicatricial alopecias but reports no new clinical results; emerging insights suggest sebaceous gland dysfunction may play a role in their etiopathogenesis.
14 citations
,
January 2011 in “Journal of Cutaneous Pathology” This study found that CK15 is an unreliable marker for assessing bulge zone integrity in cicatricial alopecia follicles due to its altered expression in diseased conditions.
235 citations
,
January 2011 in “Journal of Clinical Investigation” This study found that androgenetic alopecia may involve a defect in the conversion of hair follicle stem cells to progenitor cells, as demonstrated by a reduced presence of progenitor cells in bald scalp samples.
150 citations
,
October 2010 in “The American Journal of Pathology” This review discusses the pathogenesis and challenges in treating primary cicatricial alopecia, highlighting the need to understand immune protection collapse in hair follicle stem cells; it reports no new clinical results.
3 citations
,
April 2010 in “The American Journal of Dermatopathology” This study observed similar D2-40 expression in scarring and nonscarring alopecia, with some increase in scarring cases, suggesting possible Fos-dependent mechanisms, though more research is needed for definitive conclusions.
29 citations
,
February 2010 in “British Journal of Dermatology” This study explores the expression of Snail1 in the fibrotic dermis of postmenopausal women with frontal fibrosing alopecia, suggesting a possible link to epithelial-mesenchymal transition.
105 citations
,
December 2009 in “Archives of dermatology” This overview discusses primary cicatricial alopecias, focusing on lichen planopilaris, and highlights the challenges in treatment and the progressive nature of hair loss despite symptom management, without providing new clinical results.
54 citations
,
January 2009 in “British Journal of Dermatology” This study found that in scarring alopecia, stem cells are differentially localized, suggesting that both inner and outer root sheath stem cells, rather than just follicular bulge stem cells, are involved.
10 citations
,
July 2008 in “Journal of Cutaneous Pathology” This study reports that marked, deep dermal mucin deposition in a patient with alopecia areata may indicate underlying systemic lupus erythematosus, as this feature was not prevalent in other alopecia areata cases.
76 citations
,
June 2008 in “Journal of the American Academy of Dermatology” In this study, key histologic features such as mucinous perifollicular fibroplasia were identified to aid in the diagnosis of lichen planopilaris.
19 citations
,
February 2008 in “Archives of Dermatological Research” This study observed that mast cells and increased collagen and elastic fibers in the scalp may contribute to male pattern hair loss, but additional research is needed for further understanding.
159 citations
,
November 2007 in “American Journal of Pathology” In this study, researchers found that substance P triggered premature catagen development and immune changes in human scalp hair follicles, providing a possible biological link between stress and hair loss conditions like telogen effluvium and alopecia areata.
28 citations
,
June 2007 in “Journal of Cutaneous Pathology” This study found that premature desquamation of the inner root sheath is a non-specific histologic feature in scarring alopecia and cannot be used alone to define central centrifugal cicatricial alopecia.
90 citations
,
June 2006 in “The American Journal of Dermatopathology” This review outlines the classification, histopathologic presentation, and pathogenetic concepts of scarring and nonscarring alopecias, reporting no new clinical results and emphasizing the need for clinicopathologic correlation.
126 citations
,
April 2006 in “International Journal of Dermatology” This study found that frontal fibrosing alopecia and lichen planopilaris have similar histopathological features, but FFA exhibits more prominent apoptosis and less inflammation with spared interfollicular epidermis.
44 citations
,
January 2006 in “Biological & Pharmaceutical Bulletin” This research suggests that testosterone-induced expression of TGF-beta1 and type I procollagen may lead to perifollicular fibrosis in androgenetic alopecia, with finasteride inhibiting this process as a possible mechanism for its effects.
550 citations
,
December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” This study found that bulge cells marked by CD200+ in human hair follicles show high colony-forming efficiency, suggesting successful enrichment of keratinocyte stem cells.
29 citations
,
March 2001 in “Clinics in Dermatology” This article discusses various types of primary cicatricial alopecias and reports no new clinical results; it emphasizes the importance of accurate diagnosis for effective management.
80 citations
,
March 2000 in “Journal of cutaneous pathology” This study found that the Verhoeff-Van Gieson stain effectively distinguishes scarred from non-scarred dermis and aids in classifying types of permanent alopecia based on elastic tissue patterns.
57 citations
,
August 1999 in “Archives of dermatology” Hair follicles grow hair and release it through the skin.
416 citations
,
September 1997 in “Journal of Investigative Dermatology” People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.