Abstract:
BACKGROUND:Malassezia yeasts are normal flora of the skin that are discovered in 75~98% of health subjects, but since its association with various skin disorders have been known, many studies have been conducted in the distribution of the yeasts. OBJECTIVE:To isolate, identify, and classify Malassezia yeasts from the normal human skin of Koreans by using the rapid and accurate molecular biology method (26S rDNA PCR-RFLP) which overcome the limits of morphological and biochemical methods, and to gather a basic database that will show its relation to various skin diseases. METHODS:Malassezia yeasts were cultured from clinically healthy human skin using scrub-wash technique at five sites (forehead, cheek, chest, upper arm, and thigh) and swabbing technique at scalp in 160 participants comprised of 80 males and 80 females aged from 0 to 80. Identification of obtained strains were placed into the one of the 11 species by 26S rDNA PCR-RFLP. RESULTS:An overall positive culture rate was 62.4% (599/960). As shown in the experiment groups by their age, the positive culture rate was the highest (74.2%) in the age 21~30 and 31~40 (89/120). In the experiment groups by different body areas, the scalp showed the highest positive culture rate of 90% (144/160). On analysis of 26S rDNA PCR-RFLP, M. globosa was the most predominant species in the age 0~10 (32.8%), 11~20 (28.9%), 21~30 (32.3%). M. restricta was identified as predominant species in the age 41~50 (27.9%), 61~70 (31.5%) and 71~80 (24.0%). In the age 31~40 years, M. sympodialis was found to be the most common species (24.6%). According to body site, M. restricta was more frequently recovered in the scalp (56.8%), forehead (39.8%) and cheek (24.0%) and while M. globosa was more frequently recovered in the chest (36.8%). Higher positive culture rates of Malassezia yeasts were shown in male subjects than female counterparts in all body areas except scalp (p<0.05). Especially in this study, M. dermatis, newly isolated Malassezia species from atopic dermatitis patient in Japan, was isolated and identified in 19 cases (1.9%) in healthy subjects. CONCLUSION:The key is to recognize the existence of a difference in the type of Malassezia species in different ages as well as body areas, which reflects differing skin lipid levels in various ages and different body areas. Moreover, 26S rDNA PCR-RFLP analysis which was opted in this study could provide a sensitive and rapid identification system for Malassezia species, which may be applied to epidemiological surveys and clinical practice.
journal_name
Ann Dermatoljournal_title
Annals of dermatologyauthors
Jang SJ,Lim SH,Ko JH,Oh BH,Kim SM,Song YC,Yim SM,Lee YW,Choe YB,Ahn KJdoi
10.5021/ad.2009.21.1.18subject
Has Abstractpub_date
2009-02-01 00:00:00pages
18-26issue
1eissn
1013-9087issn
2005-3894journal_volume
21pub_type
杂志文章abstract::Fexofenadine (Allegra® 180) is a second-generation antihistamine. It is widely used as anti-allergic drug, which suppresses various allergic reactions mediated by histamines. A few cases of H1-antihistamine-induced urticaria have been reported. Herein, we report a rare case of fexofenadine-induced urticaria which was ...
journal_title:Annals of dermatology
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doi:10.5021/ad.2011.23.S3.S329
更新日期:2011-12-01 00:00:00
abstract::This is the first case report to describe a 44-year-old woman with a history of advanced hepatocellular carcinoma who developed toxic epidermal necrolysis (TEN) clinically after taking 400 mg sorafenib (Nexavar®, BAY 43-9006) and tosufloxacin orally once per day. Both sorafenib and tosufloxacin were eventually discont...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.S3.S404
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abstract:BACKGROUND:The clinical symptoms of facial and truncal acne differ. Skin surface acidity (pH), which is affected by sebum secretions, reflects the different clinical characteristics of the face and trunk. However, no studies have been conducted on truncal sebum production and skin pH. OBJECTIVE:We evaluated the differ...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2016.28.2.216
更新日期:2016-04-01 00:00:00
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journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2017.29.3.327
更新日期:2017-06-01 00:00:00
abstract::Compared to cutaneous benign fibrous histiocytoma (BFH), deep-seated BFH is very rare and poorly recognized. Both cutaneous and deep-seated BFH are usually asymptomatic. We herein report a 25 year-old woman who presented with a painful mass in her foot that was poorly controlled by analgesics and associated with walki...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.S2.S239
更新日期:2011-10-01 00:00:00
abstract::Basal cell carcinoma (BCC) is one of the most commonly diagnosed malignant skin tumors and develops characteristically on sun-exposed areas, such as the head and neck. Ultraviolet light exposure is an important etiologic factor in BCCs, and BCCs arising from non-sun- exposed areas are, therefore, very rare. In particu...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.3.405
更新日期:2011-08-01 00:00:00
abstract::Focal acral hyperkeratosis (FAH) is a rare genodermatosis with an autosomal dominant pattern of inheritance; however, it may also be sporadic. FAH is characterized by late-onset crateriform keratotic papules, some coalescing into plaques, along the borders of the hands and feet. We herein report a case of FAH in a 47-...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2009.21.4.426
更新日期:2009-11-01 00:00:00
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journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2013.25.3.352
更新日期:2013-08-01 00:00:00
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journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2012.24.3.345
更新日期:2012-08-01 00:00:00
abstract::Telogen effluvium is categorized in nonscarring alopecia, which shows scalp hair thinning and shedding diffusely resulting from inducing factors such as physiological stressful events and several acute or chronic diseases. It usually appears in female patients following parturition, as well as after febrile disease, m...
journal_title:Annals of dermatology
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doi:10.5021/ad.2018.30.2.214
更新日期:2018-04-01 00:00:00
abstract::Tubular apocrine adenoma (TAA) is a very rare sweat gland tumor. TAA and syringocystadenoma papilliferum (SCAP) rarely develop together in a nevus sebaceus (NS). Herein, we report on a 40-year-old Korean woman with TAA associated with SCAP that developed in a NS located on the scalp. ...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2010.22.3.319
更新日期:2010-08-01 00:00:00
abstract::Disseminated superficial porokeratosis (DSP) is a rare variant of porokeratosis, which is characterized histologically by cornoid lamella and clinically by central atrophy with elevated borders. DSP is usually associated with immunosuppressive states and hematopoietic malignancies, but rarely with malignancies of visc...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2008.20.4.193
更新日期:2008-12-01 00:00:00
abstract::Melanocytic nevi are subject to change with age in both clinical and histopathologic findings. In 1991, Cho et al. first reported three cases of lobulated intradermal nevi and suggested their cases represented an unusual form of regressing melanocytic nevus. Herein we report four cases of lobulated intradermal nevus a...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.1.115
更新日期:2011-02-01 00:00:00
abstract::Nuchal-type fibroma is a rare, benign, fibrous, tumor-like proliferation characterized by dense hypocellular bundles of collagen, with sparsely scattered fibroblasts, interspersed fat tissue, and entrapped nerve fibers. It usually develops in the posterior neck as a solitary, firm, poorly circumscribed, subcutaneous m...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2015.27.2.194
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Basal cell carcinoma (BCC) is the most common form of skin cancer and possesses various clinical features including translucency, ulceration, pigmentation, telangiectasia, and rolled borders. Accordingly, many cutaneous lesions can mimic BCCs and differential diagnosis is difficult. OBJECTIVE:To clarify the...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2014.26.4.431
更新日期:2014-08-01 00:00:00
abstract::A 70-year-old woman with an 8-year history of systemic sarcoidosis developed round, red-brown eruptions, with central atrophic lesions on her lower legs. The features of the biopsy specimen resembled those of necrobiosis lipoidica (NL), but although necrobiosis was present there were well-formed non-necrotizing granul...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2012.24.1.74
更新日期:2012-02-01 00:00:00
abstract::Herein, we report a case of an 8-year-old girl with dapsone hypersensitivity syndrome (DHS) that occurred during the treatment of erythema elevatum diutinum. She had fever, gross hematuria, and malaise for three weeks after initiation of dapsone therapy. Five days after stopping dapsone treatment, she returned to the ...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.S3.S290
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Computer-aided image analysis (CAIA) has been suggested as an effective diagnostic tool for pigmented skin lesions (PSLs), especially melanoma. However, few studies on benign PSLs have been reported. OBJECTIVE:The purpose of this study was to evaluate benign PSLs with our CAIA software and analyze the diffe...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2014.26.3.314
更新日期:2014-06-01 00:00:00
abstract::Acantholytic squamous cell carcinoma is a well-defined variant of squamous cell cancer in which significant portions of the neoplastic proliferation show a pseudoglandular or tubular microscopic pattern. It usually presents as a nodule with various colors, and it is accompanied by scaling, crusting, and ulceration on ...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2008.20.4.267
更新日期:2008-12-01 00:00:00
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journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.2.201
更新日期:2011-05-01 00:00:00
abstract::Extraskeletal osteosarcoma (ESOS) is a very rare malignant tumor of mesenchymal origin. It is rarer than osseous osteosarcoma and there are very few reports of the skin being a primary site. Most reported cutaneous ESOS were accompanied with metastasis in other organs. A 56-year-old man presented with a painful, 1.5×0...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.S2.S160
更新日期:2011-10-01 00:00:00
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journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.4.539
更新日期:2011-11-01 00:00:00
abstract:Background:Prevalence of subungual melanoma (SUM) in Asian population is relatively high and early clinical detection improves both quality of life and survival. Objective:We sought to establish screening strategy for SUM in situ. Methods:We retrospectively reviewed medical records of 8 patients pathologically diagno...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2018.30.1.36
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Angiogenesis is crucial for wound healing and exogenous supplements of the angiogenic growth factors have been known to promote cutaneous wound healing. Angiopoietin (Ang) 1 is a recently discovered angiogenic factor and there have been few studies of its effect on cutaneous wound healing. OBJECTIVE:We exam...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2008.20.2.49
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Diabetic wounds are a major clinical challenge, because minor skin wounds can lead to chronic, unhealed ulcers and ultimately result in infection, gangrene, or even amputation. Studies on bone marrow derived mesenchymal stem cells (BMSCs) and a series of growth factors have revealed their many benefits for w...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2014.26.1.1
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:Recently, the pulse-in-pulse mode of intense pulsed light (IPL) has been used increasingly for the treatment of melasma. OBJECTIVE:To observe the morphologic changes in the melanophore in adult zebrafish after irradiation with conventional and pulse-in-pulse IPL and Q-switched Nd:YAG (QSNY) laser. METHODS:...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2016.28.6.711
更新日期:2016-12-01 00:00:00
abstract:BACKGROUND:The use of growth factors in skin rejuvenation is emerging as a novel anti-aging treatment. While the role of growth factors in wound healing is well established, their use in skin rejuvenation has only recently been to be studied and no controlled trials have been performed. OBJECTIVE:We evaluated the anti...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2014.26.5.584
更新日期:2014-10-01 00:00:00
abstract::Nicolau syndrome is a rare adverse reaction to a variety of intra-muscular drug preparations. The typical presentation is pain around the injection site soon after injection, followed by erythema, livedoid patch, hemorrhagic patch, and finally, necrosis of skin, subcutaneous fat, and muscle tissue. The phenomenon has ...
journal_title:Annals of dermatology
pub_type:
doi:10.5021/ad.2011.23.4.501
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:Hair follicles undergo cycles of repeated growth and regression. The Wnt pathway plays an important role in the regeneration and differentiation of hair follicles. Sfrp2, a Wnt inhibitor, is involved in the developmental and disease processes of various cells and tissues by modulating the Wnt pathway. OBJEC...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2014.26.1.79
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:The extracellular matrix (ECM) produced by dermal fibroblasts supports skin structure, and degradation and/or reduced production of ECM are the main causes of wrinkle formation. OBJECTIVE:The aim of this study was to identify the active ingredient that enhances ECM production in dermal fibroblasts. METHODS...
journal_title:Annals of dermatology
pub_type: 杂志文章
doi:10.5021/ad.2012.24.1.16
更新日期:2012-02-01 00:00:00