docj077
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So, I've been trying to find studies that demonstrate what the outcome of androgenic alopecia truly is at the pathologic level. It's been tough to find a whole lot. But, here's what I've found the likely end result is of sustained inflammation and fibrosis secondary to androgenic inhibition of the hair follicle at the molecular level.
There is a research article here and a discussion of keratin.com that discusses the article.
So, what I need to know and what I need to research apparently is, do men who have androgenic alopecia actually have reversal or maintenance of their hair while on immune system modulating drugs or just simple anti-inflammatories? I've read that drugs that target TNF-alpha have increased hair growth as a side effect. However, no current TGF-beta drugs currently exist, which is most likely the primary mediator of the fibrosis that occurs in hair loss.
Basically, our hair loss treatment goals should be to inhibit DHT formation, inhibit androgen receptor binding, inhibit TGF-beta and TNF-alpha downstream effects and fibroblast production of fibrin and collagen around the follicle, and finally, the inflammation process.
Case study: fibrosing alopecia in a pattern distribution localized on alopecia androgenetica areas and unaffected scalp.Amato L, Chiarini C, Berti S, Bruscino P, Fabbri P.
Second Dermatology Clinic, Department of Dermatological Sciences, University of Florence, Italy.
A 54-year-old man with a 24-year history of androgenetic alopecia was referred to the Department of Dermatological Sciences with follicular inflammatory lesions leading to scleroatrophy in the vertex region (Figure 1) of 1-year duration.These lesions appeared a year ago. There was no previous history of this condition. On examination, the patient showed confluent infiltrative follicular lesions on the frontoparietal and occipital scalp (Figure 2). Some lesions evolved into erosions that developed in ivory white scleroatrophy within weeks. These lesions were localized both in and outside of are as affected by alopecia androgenetica and were associated with mild pruritus. Histopathologic examination, performed on an early lesion of the vertex, documented a mild thinning of follicular epithelium associated with an intense lymphohistiocytic perifollicular infiltrate. The damage of the basal cell layer was limited to the follicle, while epidermis was intact.In particular, follicular keratinocytes under the isthmus showed a very intense degeneration exactly where the infiltrate was the most prominent. The damage of the hair sheath was under the isthmus and involved the lower portions of the follicles (including the hair bulbs). The inflammatory infiltrate was exclusively represented by perifollicular lymphohistiocytes. Finally, a connective fibrotic shell with numerous fibroblasts formed a sheath around the atrophic follicle (Figure 3).Results of laboratory investigations (including complete blood cell counts, basal thyroid-stimulating hormone, C-reactive protein, serum ferritin levels, B and C hepatitis markers, antinuclear antibodies, and cultural examinations) were negative.We diagnosed the patient with fibrosing alopecia in a pattern distribution.
http://www.keratin.com/at/at007.shtml
Be aware, these cases are severe, but the end result is the same in all individuals.
"Fibrosing alopecia in a pattern distribution clinical features
Biopsy specimens of early lesions demonstrated hair follicle miniaturization and a lichenoid inflammatory infiltrate targeting the upper follicle region of the miniaturizing hair folicles. Advanced lesions under the microscope showed perifollicular lamellar fibrosis (growth of excessive amounts of fibrous tissue) and completely fibrosed follicular tracts, identical to end-stage lichen planopilaris, pseudopelade, or follicular degeneration syndrome.
Differential Diagnosis
The inflammation in Fibrosing alopecia in a pattern distribution (FAPD) seems to target the small-miniaturizing follicles, a finding that has not as yet been noted in lichen planopilaris. But then again, this may be because no one else has as yet looked for this particular finding.
Fibrosing alopecia in a pattern distribution shares similar clinical features with Central centrifugal cicatricial alopecia, especially the manner in which the hair loss is centered on the crown and vertex, and lamellar fibroplasia and chronic perifollicular inflammation. FAPD can be distinguished from CCCA by virtue of its lichenoid histological features, but the histological overlap with different hair loss conditions may make it difficult to assign a specific diagnosis.
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Fibrosing alopecia in a pattern distribution pathology
The biopsy specimens of patients with fibrosing alopecia in a pattern distribution as studied by Trueb and Zinkernagel showed evidence of lichenoid inflammation with destruction of the follicular basilar epithelium. This inflammation was most evident around the upper half of the follicle. Terminal hairs (deep-rooted coarse hairs) as well as vellus hairs (tiny colorless hairs) were affected. Advanced lesions under the microscope showed perifollicular lamellar fibrosis (growth of excessive amounts of fibrous tissue) and completely fibrosed follicular tracts, as seen in end-stage lichen planopilaris, pseudopelade, or follicular degeneration syndrome.
--------------------------------------------------------------------------------
Fibrosing alopecia in a pattern distribution treatment
During the course of the research study, three patients seemed to have responded to “antiandrogen†therapy and appeared to have experienced a halt in the progress of the distinctive form of alopecia. An antiandrogen obstructs the effects of androgens (male hormones) normally by blocking the receptor sites. As this is a relatively newly identified condition, there is very little research on effective treatment."
Thoughts and opinions are welcome.
There is a research article here and a discussion of keratin.com that discusses the article.
So, what I need to know and what I need to research apparently is, do men who have androgenic alopecia actually have reversal or maintenance of their hair while on immune system modulating drugs or just simple anti-inflammatories? I've read that drugs that target TNF-alpha have increased hair growth as a side effect. However, no current TGF-beta drugs currently exist, which is most likely the primary mediator of the fibrosis that occurs in hair loss.
Basically, our hair loss treatment goals should be to inhibit DHT formation, inhibit androgen receptor binding, inhibit TGF-beta and TNF-alpha downstream effects and fibroblast production of fibrin and collagen around the follicle, and finally, the inflammation process.
Case study: fibrosing alopecia in a pattern distribution localized on alopecia androgenetica areas and unaffected scalp.Amato L, Chiarini C, Berti S, Bruscino P, Fabbri P.
Second Dermatology Clinic, Department of Dermatological Sciences, University of Florence, Italy.
A 54-year-old man with a 24-year history of androgenetic alopecia was referred to the Department of Dermatological Sciences with follicular inflammatory lesions leading to scleroatrophy in the vertex region (Figure 1) of 1-year duration.These lesions appeared a year ago. There was no previous history of this condition. On examination, the patient showed confluent infiltrative follicular lesions on the frontoparietal and occipital scalp (Figure 2). Some lesions evolved into erosions that developed in ivory white scleroatrophy within weeks. These lesions were localized both in and outside of are as affected by alopecia androgenetica and were associated with mild pruritus. Histopathologic examination, performed on an early lesion of the vertex, documented a mild thinning of follicular epithelium associated with an intense lymphohistiocytic perifollicular infiltrate. The damage of the basal cell layer was limited to the follicle, while epidermis was intact.In particular, follicular keratinocytes under the isthmus showed a very intense degeneration exactly where the infiltrate was the most prominent. The damage of the hair sheath was under the isthmus and involved the lower portions of the follicles (including the hair bulbs). The inflammatory infiltrate was exclusively represented by perifollicular lymphohistiocytes. Finally, a connective fibrotic shell with numerous fibroblasts formed a sheath around the atrophic follicle (Figure 3).Results of laboratory investigations (including complete blood cell counts, basal thyroid-stimulating hormone, C-reactive protein, serum ferritin levels, B and C hepatitis markers, antinuclear antibodies, and cultural examinations) were negative.We diagnosed the patient with fibrosing alopecia in a pattern distribution.
http://www.keratin.com/at/at007.shtml
Be aware, these cases are severe, but the end result is the same in all individuals.
"Fibrosing alopecia in a pattern distribution clinical features
Biopsy specimens of early lesions demonstrated hair follicle miniaturization and a lichenoid inflammatory infiltrate targeting the upper follicle region of the miniaturizing hair folicles. Advanced lesions under the microscope showed perifollicular lamellar fibrosis (growth of excessive amounts of fibrous tissue) and completely fibrosed follicular tracts, identical to end-stage lichen planopilaris, pseudopelade, or follicular degeneration syndrome.
Differential Diagnosis
The inflammation in Fibrosing alopecia in a pattern distribution (FAPD) seems to target the small-miniaturizing follicles, a finding that has not as yet been noted in lichen planopilaris. But then again, this may be because no one else has as yet looked for this particular finding.
Fibrosing alopecia in a pattern distribution shares similar clinical features with Central centrifugal cicatricial alopecia, especially the manner in which the hair loss is centered on the crown and vertex, and lamellar fibroplasia and chronic perifollicular inflammation. FAPD can be distinguished from CCCA by virtue of its lichenoid histological features, but the histological overlap with different hair loss conditions may make it difficult to assign a specific diagnosis.
--------------------------------------------------------------------------------
Fibrosing alopecia in a pattern distribution pathology
The biopsy specimens of patients with fibrosing alopecia in a pattern distribution as studied by Trueb and Zinkernagel showed evidence of lichenoid inflammation with destruction of the follicular basilar epithelium. This inflammation was most evident around the upper half of the follicle. Terminal hairs (deep-rooted coarse hairs) as well as vellus hairs (tiny colorless hairs) were affected. Advanced lesions under the microscope showed perifollicular lamellar fibrosis (growth of excessive amounts of fibrous tissue) and completely fibrosed follicular tracts, as seen in end-stage lichen planopilaris, pseudopelade, or follicular degeneration syndrome.
--------------------------------------------------------------------------------
Fibrosing alopecia in a pattern distribution treatment
During the course of the research study, three patients seemed to have responded to “antiandrogen†therapy and appeared to have experienced a halt in the progress of the distinctive form of alopecia. An antiandrogen obstructs the effects of androgens (male hormones) normally by blocking the receptor sites. As this is a relatively newly identified condition, there is very little research on effective treatment."
Thoughts and opinions are welcome.