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J Dermatol. 2002 Oct;29(10):661-4.
Seventeen cases of alopecia areata: combination of SADBE topical immunotherapy with other therapies.

Morita K, Nakamura M, Nagamachi M, Kishi T, Miyachi Y.

Department of Dermatology, Graduate School of Medicine, Kyoto University, Japan.

Topical immunotherapy is effective for severe alopecia areata. However, there are patients with alopecia areata refractory to topical immunotherapy alone. We tried SADBE (squaric acid dibutylester) topical immunotherapy combined with topical dry ice cryotherapy, carpronium chloride (a parasympathetic nerve stimulant) and/or oral cepharanthin (a biscoclaur alkaloid) in alopecia areata refractory to topical SADBE. Seventeen patients with alopecia areata (3 multiple, 3 ophiasis, 5 totalis and 6 universalis) were treated with SADBE in our department in 1999 to 2001. In 3 cases (2 multiple and 1 universalis) out of the 17 cases, cosmetically acceptable regrowth of hair was observed in several months with topical SADBE alone. In the other 14 cases, the SADBE therapy alone for several months (mean: 6.9 months) resulted in no or poor regrowth of hair. However, with subsequent combination therapy of topical SADBE for several months (mean: 7.6 months), satisfactory regrowth of hair was observed in 6 of the 14 cases. Our cases indicate that combination therapy of topical SADBE with other therapies can be a choice for alopecia areata which is refractory to topical SADBE therapy alone.

online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12433000&dopt=Abstract




J Invest Dermatol. 1999 Jul;113(1):61-8.
Successful treatment of alopecia areata-like hair loss with the contact sensitizer squaric acid dibutylester (SADBE) in C3H/HeJ mice.

Freyschmidt-Paul P, Sundberg JP, Happle R, McElwee KJ, Metz S, Boggess D, Hoffmann R.

Department of Dermatology, Philipp University, Marburg, Germany.

A type of hair loss closely resembling human alopecia areata has been described in C3H/HeJ mice. In order to test the assumed analogy with human alopecia areata, we investigated the efficacy of treatment with the contact allergen squaric acid dibutylester. In 12 C3H/HeJ mice with alopecia areata an allergic contact dermatitis was induced and elicited weekly on one side of the back by topical applications of squaric acid dibutylester. Overt hair regrowth was observed only on the treated side of the back in nine of 12 mice. Histopathologic examination revealed a change in the distribution of the inflammatory infiltrate from a dense perifollicular lymphocytic infiltrate around the mid and lower regions of hair follicles in untreated skin to a uniform presence in the upper dermis in treated skin. Immunohistomorphometric studies revealed that treatment with squaric acid dibutylester increased the CD4+/CD8+ ratio from approximately 1:2 in untreated alopecia areata to 1:1 in treated alopecia areata. Additional immunohistochemical investigations showed an aberrant expression of major histocompatibility complex class I, major histocompatibility complex class II and intercellular adhesion molecule 1 on keratinocytes of the mid and lower parts of hair follicles in untreated alopecia areata. In successfully treated skin ectopic major histocompatibility complex class I and II expression was clearly reduced, whereas intercellular adhesion molecule 1 expression showed only minor changes. In conclusion, alopecia areata-like hair loss in C3H/HeJ mice responded to treatment with the contact sensitizer squaric acid dibutylester analogous to human alopecia areata. Moreover, successful treatment changes the aberrant expression of major histocompatibility complex class I and II in a way similar to that observed in human alopecia areata. These observations support the concept that alopecia areata-like hair loss in C3H/HeJ mice can be utilized as an appropriate model for the study of human alopecia areata.

online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10417620&dopt=Abstract

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BACKGROUND: Alopecia areata is believed to be an autoimmune condition with a worldwide occurrence. It usually presents as patchy, nonscarring hair loss. There is a paucity of clinical data in Asians. OBJECTIVE: To study the epidemiology, clinical aspects, associations, and treatment of alopecia areata in an Asian population over a 1-year period. METHODS: Records of all newly diagnosed alopecia areata cases seen from May 1998 to April 1999 at the National Skin Center were collated with regard to the epidemiology, pattern of alopecia, and associations according to the investigational guidelines published by Oslen et al. The treatment and psychologic impact of alopecia areata were also assessed. RESULTS: Two hundred and nineteen new case referrals of alopecia areata were seen from May 1998 to April 1999. The incidence of alopecia areata was 3.8%. There were 173 Chinese (79%), 35 Indians (16%), and 11 Malays (5.0%). The male to female ratio was 1 : 1.3. The median age at presentation was 25.2 years. The majority of patients (85.5%) had their first episode of alopecia areata before the age of 40 years. Of the patients with onset of alopecia areata before the age of 40 years, 36.5% presented with extensive alopecia, compared with 5.5% above the age of 40 years (P < 0.05). Nail changes, consisting of pitting, trachyonychia, and longitudinal ridging, were reported in 23 patients (10.5%). A significant percentage of patients had an associated personal and family history of atopy (60.7%). There was no significant association between a personal history of atopy and the extent of alopecia areata. The frequencies reported for the following associated diseases were: thyroid disease, 2.3%; vitiligo, 4.1%; diabetes mellitus, 3.2%; Down's syndrome, 1.4%; and rheumatic arthritis, 0.9%. A family history of alopecia areata was reported in 4.6%. Intralesional triamcinolone acetonide was the first-line treatment for limited alopecia areata, while squaric acid dibutyl ester was used for extensive involvement. The majority of patients with limited alopecia areata (82.1%) had more than 50% improvement with intralesional triamcinolone acetonide after 3 months. The majority of patients who received squaric acid dibutyl ester (87.5%) achieved more than 50% regrowth at the end of 6 months. Poor prognostic factors for alopecia areata were extensive involvement, early age of onset, and Down's syndrome. Thirteen out of 132 respondents (9.8%) recalled stressful events preceding hair loss. Patients with extensive alopecia areata experienced more psychologic adverse effects than those with limited alopecia areata (P < 0.05). Males with extensive alopecia areata experienced more severe psychologic ill-effects, such as depression and feelings of inability to improve hair loss. CONCLUSIONS: Our findings are similar to those reported in the Western literature where alopecia areata is predominantly a disease of the young. A holistic approach is important in the management of alopecia areata as the disease can have a severe psychologic impact on an individual's well-being.

online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12452996&dopt=Abstract





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