Ia antigen (HLA-DR in rnan) is confined to the Langerhans cells and indeterminate cells in the normal epidermis in man. However the keratinocyte express la antigen in a variety of dermatoses. IFN-r (irnmune interfcron), known as macrophage activating factor, has been shown to induce Ia antigen expression in a wide variety of cell types. However the Ia antigen induced by 1FN-r is inhibited PGE2, a product of cyclooxygenase pathway of arachidonic acid metabolism. LTB4, a product of lipoxygenase pathway, can replace the IL-2 requirement for IFN-r production in the lymphocytes. There are three main morphalogical patterns of Ia antigen staining in the epidennis. Staining of the basal cells, staining in the mid epidermis in Malphigian layer and staining throughout the epidermis. The staining of Ia' keratinocyte was found to be confined to the lesional area of contact hypersensitivity reaction, graft vs host disease, and lichen planus. la+staining to extend beyond the lesional area was also seen in the study on turberculosis and leporsy.
Arachidonic Acid ; Dermatitis, Contact ; Dinoprostone ; Epidermis ; Graft vs Host Disease ; Histocompatibility Antigens Class II ; Interleukin-2 ; Keratinocytes* ; Langerhans Cells ; Leukotriene B4 ; Lichen Planus ; Lipoxygenase ; Lymphocytes ; Macrophages ; Metabolism ; Prostaglandin-Endoperoxide Synthases ; Skin Diseases

No abstract available.
Animals ; Dermatitis, Contact* ; Dinitrochlorobenzene* ; Guinea Pigs* ; Guinea* ; Spleen*

Porphyria is a rare metabolic disorder in this country and a few cases of acute intermittent porphyria has been reported. We observed a case of porphyria cutanea tarda associated with liver cirrhosis. The patient was 61-year-old farmer with heavy alcoholic habit. He had been suffered from skin fragility and photosensitivity for 3 years. His face color was slate blue and sclerdermoid appearance noted especially on the cheek. Bullae, which is healing slowly and followed by atrophic pigmented scars, were developed on the dorsum of hand and feet after receiving trivial trauma and massive alcohol intake. None of his family members has similar symptoms. Urine specimen showed port-wine coIor and fluoresced pinkish under the Wood's light. Serum iron level was markedly elevated (400 microgram%). The other abnormal findings of liver function test were BSP retention (16%/45min.), elevated SGOT (198 unit) and SGPT (80 unit) levels. Esophagram revealed suspicious of varices and liver scanning showed cirrhotic changes. Skin biopsy specimens taken from the cheek and dorsum of hand showed sclermoid changes and subepidermal bulla. Liver biopsy disclosed mild degree of cirrhotic changes.
Alanine Transaminase ; Alcoholics ; Aspartate Aminotransferases ; Biopsy ; Cheek ; Cicatrix ; Foot ; Hand ; Humans ; Iron ; Liver ; Liver Cirrhosis ; Liver Function Tests ; Middle Aged ; Porphyria Cutanea Tarda* ; Porphyria, Acute Intermittent ; Porphyrias* ; Skin ; Varicose Veins

CsA per os during the early sensitization period caused potentiation of 14-day shin response and this response was enhanced in group D, CsA given on days 3 7 Thereafter, suppression of CHS began in group E, CsA was given on days 6- 1G, and this tendency continue to the time of full sensitization of guinea pigs (group G). 27701173 We report herein a case of alopecia mucinosa in a 46-year-old male. He had a coin-sized erythematous hairless plaque on the parietal area. Histopathologic examinations, including much stains, showed typical findings of alopecia mucinosa. Thc present case, appeared on the scalp, might be an acute benign type of the disease.
Animals ; Coloring Agents ; Cyclosporine* ; Dermatitis, Contact* ; Dinitrochlorobenzene* ; Dronabinol ; Guinea Pigs* ; Guinea* ; Humans ; Male ; Middle Aged ; Mucinosis, Follicular ; Rabeprazole ; Scalp

There have been published manuscripts which fully suggest that there may be a topographic variance of contact sensitivity in experimental animals such as guinea pigs, hamsters and mice, probably due to a large extent to the topographic difference of Langerhans cell population and to a little extent to impact on the induction site. This assay was done to establish the possibility of involvement of a certain topographic variance in contact sensitivity reaction. Three different anatomical sites were chosen for the induction in three groups of five guinea pigs: the conventional site of the nuchal region, and the sacral aod. ahdominal skin regions. For the elicitation, two different concentrations of DNCB were applied on three sites along both sides of the spine in the back. The contact sensitivity reaction elicited by DNCB in the group of the nuchal abdominal skin induction was definitely stronger at the site closer to the nuchal region than that found at sites closer to the sacral regior. but all animals of the group sensitized on the sacral region showed comparatively uniform reaction. Zvidently, contact sensitivity reaction is influenced mainly by topographic variance hut shows a litte difference depending upon induction sites.
Animals ; Cricetinae ; Dermatitis, Contact* ; Dinitrochlorobenzene ; Guinea Pigs* ; Guinea* ; Mice ; Sacrococcygeal Region ; Skin ; Spine

Lidex(Fluacinonide) 0.05% in FAPG base is a new fluorinated topical corticosteroid. 30 patients with different steroid responsive dermatoaes were treated with 0. 05% Lidex. The diagnosis included atopic dermatitis, contact dermatitis, neurodermatitis, seborheic dermatitis, nummular eczema, psoriasis vulgaris, chronic eczema and pustulosis pahmaris et plantaris. In the majority of cases Lidex cream produced excellent to good result(70%) after unoccluded application 3 times daily for 10 days. Two patients complained burning or itching sensation after the initial application of Lidex. 0.05% Lidex was compared with 0. 25% Desoxymethasone cream and 0. 25% Fluocortolone cream and was found slightly more effective in Lidex.
Burns ; Dermatitis ; Dermatitis, Atopic ; Dermatitis, Contact ; Desoximetasone ; Diagnosis ; Eczema ; Fluocinonide* ; Fluocortolone ; Humans ; Neurodermatitis ; Pruritus ; Psoriasis ; Sensation

Pityriasis lichenoids et varioliformis acuta(Mucha-Habermann disease) is a distinctive eruption of unknown cause. A case of pityriasis lichenoides et varioliformis acuta, 24-year old male, was seen at dermatology department, St. Mary's hospital, Catholic Medical College. The eruption was ;olymorphic, consisting of pink papules, Some of the papules had a fine brown scale, while others became hemorrhagic and vesicular, leading to varioliform scarring on tumk and extremities except palms and soles without subjective symptoms. Histopathological geatures were hyperkeratosis, parakeratosis focal obliteration of the dermoepidermal junction by lymphocytes extending from the dermal papillac and invading the lower dermis, heaby perivascular lymphocytic infiltration diaperdesis of red blood cells into the corium and opidermis, and necrotic crust. The lesion was completely cleared with 10 mg of methotrexate by mouth twic a week for 4 weeks.
Cicatrix ; Dermatology ; Dermis ; Erythrocytes ; Extremities ; Humans ; Lymphocytes ; Male ; Methotrexate ; Mouth ; Parakeratosis ; Pityriasis Lichenoides* ; Pityriasis* ; Young Adult

The pattern of DNCB (2, 4-dinitrochlorobenzene) oral desensitization and its antigenic specificity were investigated in guinea pigs. In search of antigenic specificity of DNCB oral desensitization, animals were fed oxazolone (4-ethoxymethylene-2- phenyl-oxazol-5-one) in a DNCB presensitized group, and conversely, DNCB fed in an oxazolone presensitized group. For the study of the pattern of oral desensitization, guinea pigs were initially sensitized to DNCB and followed by feeding of DNCB for 6 days, and challenged on the 13th, 21st, 29th, 37th and 45th days after sensitization. Oxazolone feeding in DNCB presensitized guinea pigs had no effect on the development of the fully responsive DNCB contact sensitivity (72. 85g), and DNCB feeding in oxazolone pre-primed animal had no effect on the development of oxazolone contact sensitivity (79. 37g). On the contrary, oxazolone feeding in DNCB preprimed guinea pigs and DNCB feeding in oxazolone pre-primed resulted in, respectively, oxazolone and DNCB oral tolerance (44.44% p < 0.01 & 42.06%p<0.01). The effect of desensitization appeared even one day before the completion of 6 days' feeding and the efficacy lasted about 30 days by the natural waning of contact sensitivity.
Animals ; Dermatitis, Contact ; Dinitrochlorobenzene* ; Epitopes ; Guinea Pigs* ; Guinea* ; Oxazolone

In order to elucidate the mast cell changes challenged by various antihistaminic preparations and its role to the mast cells challenged by inflammation, male albino rats weighing 120-130gm were used for this investigations. Benadryl hydrochloride, Phenergan hydrochloride and Chlor-Trimeton maleate were choosed for antihistaminic challengers and ultraviolet ray was irradiated for an inflammatory challenger. 1. When rats were challenged by various antihistaminics the numbers of mast cell reached to the least after 2 days and later followed by an increasing mast cell numbers. 2. The mast cell changes were severer in order of Phenergan hydrochloride, Benadryl hydrochloride and Chlor-Trimeton maleate. 3. Degranulated mast cell was proportionally increased as the numbers of mast cell decrease after being challnged by antihistaminics and also it was decreasing when the numbers of mast cell were re-increasing
Animals ; Chlorpheniramine ; Diphenhydramine ; Humans ; Inflammation* ; Male ; Mast Cells* ; Promethazine ; Rats ; Ultraviolet Rays*

The 16 out of 19 cases with combined oral administration oral of Descrespet and Tetracycline hydrochloride were considerably more effective in treatment of severe acne than Tetracycline hydrochloride alone or placebo in this study. 10 cases of atopic dermatitis and 6 severe acne with side effect for tetracycline hydrochlorid, such as aMominal discomfortness, also treated with Descresapt: 7 cases of atopic dermatitis and 4 acne cleared definitely faster than in patient not given Descresept Conclusively, it is cnosidered that the Descresept is effective in the tretment of severe acne and atopic dermatitis.
Acne Vulgaris ; Administration, Oral ; Dermatitis, Atopic ; Humans ; Tetracycline