ABSTRACT
No abstract available.
Subject(s)
Carcinoma, Squamous Cell , Epithelial Cells , PorokeratosisABSTRACT
No abstract available.
Subject(s)
Adalimumab , Colitis, Ulcerative , Pyoderma Gangrenosum , Pyoderma , UlcerABSTRACT
BACKGROUND: Micro-needle patches have been recently used to increase skin permeability, which improves drug delivery, and for cosmetic purposes. However, these patches may often have limited efficacy due to insufficient skin penetration and reduced compliance caused by discomfort. OBJECTIVE: We evaluated the efficacy and the safety of soluble micro-spicule containing epidermal growth factor (MS-EGF) for the treatment of periocular wrinkles. METHODS: Twenty healthy volunteers aged 33 to 54 years were enrolled in a randomized, controlled, split-face study. For 4 weeks, a periocular wrinkle was treated daily with either a soluble MS-EGF cream or a cream containing EGF alone. All subjects underwent 8 weeks of follow-up. Efficacy was assessed using an ultrasonic measurement of dermal depth and density, digital skin image analysis, 5-point photonumeric scale for periocular wrinkles and subjective satisfaction. RESULTS: MS-EGF group showed statistically significant increase of dermal depth and density compared to EGF alone group after 4 and 8 weeks. In addition, there was a marked improvement shown in clinical and 3-dimensional skin image in MS-EGF group. The treatments were well-tolerated; no significant side-effect was noted. CONCLUSION: The MS-EGF formulation may represent an effective and biocompatible advance in the treatment of periocular wrinkles.
Subject(s)
Compliance , Epidermal Growth Factor , Follow-Up Studies , Healthy Volunteers , Permeability , Skin , UltrasonicsABSTRACT
The authors note that the units on page 188 were reported incorrectly.
ABSTRACT
Lipedematous alopecia is a rare condition of unknown etiology characterized by a thick boggy scalp with varying degrees of hair loss. It is usually seen in adult African-American females, and a case in a 9-year-old was the youngest patient reported thus far. We report on the appearance of this condition in two children, a 6-year-old child and a 10-year-old child. Each presented with congenital patchy hair loss on the occipital area and the left temple. A boggy hairless scalp with soft swelling was detected in both patients. Histological examination showed increased thickness of the subcutaneous fat tissue with a decrease in hair follicles. These features were consistent with a diagnosis of lipedematous alopecia. We report two cases of congenital lipedematous alopecia, which has not been reported previously. Although congenital, these distinct clinical features should be kept in mind in the diagnosis of alopecic hair loss.
Subject(s)
Adult , Child , Female , Humans , Alopecia , Diagnosis , Diagnosis, Differential , Edema , Hair , Hair Follicle , Scalp , Subcutaneous FatABSTRACT
BACKGROUND: Long-term use of various topical and systemic therapies for atopic dermatitis is associated with cutaneous and systemic adverse effects. Balneotherapy as an adjuvant treatment for atopic dermatitis has been extensively studied, and is considered effective and safe, in many countries. However, there is limited evidence from Korea, with only one previous report on the subject. OBJECTIVE: The aim of this study was to investigate the therapeutic efficacy and safety of balneotherapy in the treatment of atopic dermatitis in a Korean population. METHODS: Thirty atopic dermatitis patients were included in this randomized clinical trial evaluating the therapeutic efficacy of balneotherapy at Yuseong Spa, for four weeks. The patients were assigned to two groups: the control group (allowed treatment only) and balneotherapy group (additionally treated with balneotherapy). Assessment was made at baseline, and after 1, 2, and 4 weeks of treatment. RESULTS: At week 4, compared with the control group, the balneotherapy group showed significantly greater improvement in the eczema area and severity index score, physician's global assessment, patient's self global assessment, and in the measured value of transepidermal water loss. The visual analog scale for pruritus in the balneotherapy group decreased, whereas it increased in the control group. None of the patients experienced any adverse events. CONCLUSION: Our study suggests that balneotherapy may be beneficial, is safe, and may increase the quality of life for patients with atopic dermatitis.
Subject(s)
Humans , Balneology , Dermatitis, Atopic , Eczema , Korea , Pruritus , Quality of Life , Visual Analog ScaleABSTRACT
BACKGROUND: Adenosine is a nucleoside, in which an adenine molecule is attached to a ribofuranose sugar moiety. It can be released into the microenvironment by metabolically active cells, and then fulfills a multitude of functions in regulation of cell proliferation, by activating four subtypes of G protein-coupled adenosine receptors. OBJECTIVE: In this study, we investigated the effect of adenosine on melanogenesis, using B16 melanoma cells. METHODS: The toxic effects of adenosine on B16 melanoma cells were assessed. To understand the mechanism of the effect of adenosine on melanogenesis in B16 cells, melanin content and tyrosinase activity were measured. Tyrosinase, tyrosinase-related protein-1, and dopachrome tautomerase were monitored by Western blotting. Finally, adenosine was applied to zebrafish embryos, and its in vivo effect on pigmentation investigated. RESULTS: At a low concentration, adenosine increased melanin content and tyrosinase activity, while a high dose of adenosine resulted in inhibition of tyrosinase activity. Western blotting showed that adenosine increased tyrosinase protein levels slightly, while high-dose adenosine decreased the expression of tyrosinase. In zebrafish tests, adenosine slightly inhibited body pigmentation. CONCLUSION: In this study, we investigated the effect of adenosine on melanogenesis, using the well-established B16 melanoma cell and zebrafish models. The results suggest that adenosine may inhibit pigmentation, through negative regulation of tyrosinase.
Subject(s)
Adenine , Adenosine , Blotting, Western , Cell Proliferation , Embryonic Structures , Melanins , Melanocytes , Melanoma, Experimental , Monophenol Monooxygenase , Pigmentation , Receptors, Purinergic P1 , ZebrafishABSTRACT
Hypereosinophilic syndrome (HES) is characterized by chronically increased peripheral blood eosinophil levels and organ damages related to eosinophilic infiltration. Cutaneous manifestations are common (>50%) and non-specific. It is generally manifested as erythematous pruritic eczema. Linear lichen planus has not been reported in HES. A 35-year-old woman was presented with linear brownish papules and plaques on her left arm. She had been diagnosed with HES three years earlier. Initially, the skin lesions were manifested as linear pruritic erythematous plaques, but they gradually transformed into shiny brownish plaques. Skin biopsy specimens showed irregular acanthosis of the epidermis and band-like infiltrations of lymphocytes and eosinophils with necrotic keratinocytes in the papillary dermis. We proposed that the eosinophil infiltration was caused by HES, and that the patient's histological and clinical manifestations should account for linear lichen planus.
Subject(s)
Female , Humans , Arm , Biopsy , Dermis , Eczema , Eosinophils , Epidermis , Hypereosinophilic Syndrome , Keratinocytes , Lichen Planus , Lichens , Lymphocytes , SkinABSTRACT
A 45-year-old woman had a bean-sized, asymptomatic, soft nodule on the right buttock for 4 years. Histopafhologic evaluation revealed acanthosis and a central core of adipose tissue with thin papillary and reticular dermis containing eccrine glands. Staining with alcian blue showed a slight increase of mucopolysaccharides in the reticular dermis. We made the diagnosis of pedunculated lipofibroma as a solitary form of nevus lipomatosus superficialis.
Subject(s)
Female , Humans , Middle Aged , Adipose Tissue , Alcian Blue , Buttocks , Dermis , Diagnosis , Eccrine Glands , Glycosaminoglycans , NevusABSTRACT
Eruptive neonatal hemangiomatosis is an uncommon disorder, which is divided into two types according to the extent of involvement: Benign type with cutaneous hemangiomatosis only and diffuse type with widespread hemangiomas of skin and viscera. The organs commonly affected are the gastrointestinal tract, brain, liver and lung. The Diffuse type is often fatal. We herein report a case of eruptive neonatal hemangtomatosis with cutaneous and hepatic involvement. The size of the hepatic arteriovenous malformation was markedly decreased after 2 months' therapy with oral prednisolone.
Subject(s)
Arteriovenous Malformations , Brain , Gastrointestinal Tract , Hemangioma , Liver , Lung , Prednisolone , Skin , VisceraABSTRACT
Contact hypersensitivity (CH) responsiveness to 24-dinitro-l-fluorobenzene(DNFB)is depressed in mice sensitized through unexposed skin sites after exposure to high dose of ultraviolet B radiation(UVB). Exposure of mice to ultraviolet A(UVA) radiation in combination with 8-methoxypsoralen(8-MOP) also results in a systemic suppression of CH. Our study was designed to determine whether a high dose of UVA radiation alone can induce a systemic suppression of CH, and if so, which phase of CH response is influenced by UVA radiation. Relatively large doses of UVA(400, 600, 800J/cm²) induced significant systemic suppression of CH when DNFB was applied to UVA-unirradiated abdominal skin. The duration of the rest period after UVA exposure did not cause any significant change in systemic suppresion of CH. Functional analyses showed that lymph node cells(LNCs) obtained from donors that were sensitized on the unirradiated skin site with DNFB 5 days after UVA treatment transferred normal ear-swelling responsiveness to non-primed recipients, thus implying that high doses of UVA can induce systemic suppression which is not affected in the induction phase of CH but affected in the elicitation phase of CH. UVA irradiation de-creased Langerhans cell(LC) numbers significantly with a dose of 100J/cm² or greater. LNCs obtained from donors that were sensitized on the irradiated skin site with DNFB 5 days after UVA treatment did not transfer normal ear-swelling responsiveness to non-primed recipients. This phenomenon may be related to the decreased number of LC after UV treatment. To look for possible mediators impairing the elicitation phase of the CH reaction, we checked prostaglandin E(PGE) levels in serum after 800J/cm² irradiation. A high dose of UVA did not increase the serum PGE level in mice as much as UVB irradiation, in which a significant increase of PGE may affect CH response.
Subject(s)
Animals , Humans , Mice , Dermatitis, Contact , Dinitrofluorobenzene , Lymph Nodes , Prostaglandins E , Skin , Tissue DonorsABSTRACT
Contact hypersensitivity (CH) responsiveness to 24-dinitro-l-fluorobenzene(DNFB)is depressed in mice sensitized through unexposed skin sites after exposure to high dose of ultraviolet B radiation(UVB). Exposure of mice to ultraviolet A(UVA) radiation in combination with 8-methoxypsoralen(8-MOP) also results in a systemic suppression of CH. Our study was designed to determine whether a high dose of UVA radiation alone can induce a systemic suppression of CH, and if so, which phase of CH response is influenced by UVA radiation. Relatively large doses of UVA(400, 600, 800J/cm²) induced significant systemic suppression of CH when DNFB was applied to UVA-unirradiated abdominal skin. The duration of the rest period after UVA exposure did not cause any significant change in systemic suppresion of CH. Functional analyses showed that lymph node cells(LNCs) obtained from donors that were sensitized on the unirradiated skin site with DNFB 5 days after UVA treatment transferred normal ear-swelling responsiveness to non-primed recipients, thus implying that high doses of UVA can induce systemic suppression which is not affected in the induction phase of CH but affected in the elicitation phase of CH. UVA irradiation de-creased Langerhans cell(LC) numbers significantly with a dose of 100J/cm² or greater. LNCs obtained from donors that were sensitized on the irradiated skin site with DNFB 5 days after UVA treatment did not transfer normal ear-swelling responsiveness to non-primed recipients. This phenomenon may be related to the decreased number of LC after UV treatment. To look for possible mediators impairing the elicitation phase of the CH reaction, we checked prostaglandin E(PGE) levels in serum after 800J/cm² irradiation. A high dose of UVA did not increase the serum PGE level in mice as much as UVB irradiation, in which a significant increase of PGE may affect CH response.
Subject(s)
Animals , Humans , Mice , Dermatitis, Contact , Dinitrofluorobenzene , Lymph Nodes , Prostaglandins E , Skin , Tissue DonorsABSTRACT
A 18-month-old girl was seen because of an yellowish brown papular eruptions on the face, earlobes and neck of one year duration. A skin biopsy specimen revealed circumscribed cellular infiltrates composed of predorninantly pleornorphic histiocytes. Electron microscopy of biopsy material disclosed numerous worm like particles and coated vescles in limited area of the cell cytoplasm, consistent with the findinga described in benign cephalic histiocytosis. After six months of her first visit, the individual papules became flattened.