1.The Infuluences of Sympathomimetic Amines on Melanophores of the Frog Skin.
Korean Journal of Dermatology 1971;9(2):9-14
The chromatic activity and potency of various sympathomimetic amines were examined in the normal frogs using the Hogben and Slome Index as a simple method for measuring melanophore responses. All the sympathomimetic amines tested in this experiment exhibited the marked aggregation of melanophores. Among these amines, the order of potency in producing the melanophoreaggregation was catecholethylamine derivatives (epinephrine and isoproterenol) monohydroxyphenylethylamine derivative (tyramine) with exception of phenylephrine>nonhydroxyphenyletyhlamine derivatives (ephedrine and propadrine). Of catecholethylamine derivatives, thc melanophore-aggregating activity of epinephrine was more potent than that of isoproterenol. On the other hand, phenylephrine belong to the monohydroxyphenylethylamine derivatives was the least potent agent than the other amines tested.
Amines
;
Dronabinol
;
Epinephrine
;
Hand
;
Isoproterenol
;
Melanophores*
;
Phenylephrine
;
Skin*
;
Sympathomimetics*
2.Incontinentia Pigmenti Achromians ( Ito ): Report of two cases.
Korean Journal of Dermatology 1976;14(1):81-85
Incontinentia pigmenti acb.romians(Ito) is characterized by progressive bizarre or whorl-like hypopigmentation on trunk and extrementies during childhood. It is similar to a negative picture of incontinentia pigmenti(Blocb-Sulzberger) and not infrequently associated with mental, bony and ocular defects. The incidence of this disease is predominent in femaIe without hereditary background. Case 1. Two years old female was visited to our clinic because of mottled depigmented patches on right thigh for about 8 months. Case 2. 14 months oId female was visited to our clinic because of linear and. mottled depigmented natches on their limbs for about 7 months. Histopathological findings of both cases shows the focal depigmentation on basal layer. They are treated with steroid ointment with moderate to good effects.
Extremities
;
Female
;
Humans
;
Hypopigmentation
;
Incidence
;
Incontinentia Pigmenti*
;
Pigmentation Disorders*
;
Thigh
3.Letterer-Siwe Disease: Report of A Case.
Korean Journal of Dermatology 1975;13(2):139-143
Letterer-Siwe disease is a non-lipid reticuloendotheliosis of unknown etiology and usually grouped with Hand-Schuller-Christian disease and eosinophilic granuloma as components of histiocytosis-X. It occurs mostly in infancy and, clinically it is the most generalliaed and serious. In recent years, the prognosis of infants with Letterer-Siwe disease has improved, primarily due to more aggressive therapy with corticosteroids and antimetabolic agents. The 14 months old male patient was admitted into the Severance Hospital on 15th, July 1974 for evaluation of a chronic and refractory skin eruptions, abdominal distension with diarrhea and edema on extremities. He had been well until 3 months old age when he developed seborrhea-like skin eruptions which did not improve on treatment for seborrhea. Vigorous treatment was started for the baby from the beginning of admission day. Routine laboratory tests, skin biopsy, bone marrow aspiration and radiologic studies for bony structures wer done. All those studies had showed severe anemia, thrombocytopenia, multiple bony defects in skull and numerous non-lipid histiocytic infiltration in skin and bone marrow all those were consist with Letterer-Siwe disease.
Adrenal Cortex Hormones
;
Anemia
;
Biopsy
;
Bone Marrow
;
Dermatitis, Seborrheic
;
Diarrhea
;
Edema
;
Eosinophilic Granuloma
;
Extremities
;
Histiocytosis, Langerhans-Cell*
;
Humans
;
Infant
;
Male
;
Prognosis
;
Skin
;
Skin Tests
;
Skull
;
Thrombocytopenia
4.In Vitro antifungal Activities of Imidazole Derivatives.
Hong Sang CHIN ; Kwang Hoon LEE ; Chung Koo CHO
Korean Journal of Dermatology 1984;22(2):196-205
The present study was designed to obtain omparative data on in vitro antifungal activities of imidazole derivatives. Minimum inhibitory oncentrations of clotrimazole, miconazole, econazole, ketoconazlole and griseofulvin on 4 strains of Trichophyton mentagrophytes, 3 strains of Trichophyton rubrum, 2 strains of Microsporum canis and ] strain of Sporothriv: schenckii were etermined after 3 week' incubation at room temperature on Sabouraud's dextrose liquid media. In addition, the fungicidal activities of miconazole and econazole were tested against Z'richophyton mentagrophytes and Microsporum canis, using the techniques described by Vanbreuseghern(1967) The results are summarzed as follows: ] In most of the dermatophytes studied, 1 to 10 pg/ml of M1C were detected. Diverse susceptibility pattern was observed among different fungal species, but no or minor variability was noted within the same species. The susceptibility of Z'ri- chophyton rubrum showed at MIC of 0. 01 to 10 pg/ml, T ichophyton mentagro- phyt.es and Mic osporum canis at 0.1 to 10 pg/ml and 0. 1 to 1000 gg/ml respec- tively. The Trichophyton rubrum was the most sensitive. In the susceptibility test of Sporothrix schenckii, the high resistance to clotrimazole and griseofuhin was observed. The fungistatic activities of miconazole, econazole and ketoconazole were observed only at concentrations higher than JpQ pg/ml.
Arthrodermataceae
;
Clotrimazole
;
Econazole
;
Glucose
;
Griseofulvin
;
Ketoconazole
;
Miconazole
;
Microsporum
;
Sporothrix
;
Trichophyton
5.A Study on the Changes of the Skin Color of Korean Male Students in Summer.
Hae Eul LEE ; Chung Koo CHO ; Sung Nack LEE
Korean Journal of Dermatology 1984;22(2):143-147
This study was undertaken to clarify whether the color changes of skin in summer are remarkable or not. The skin color of abdomen, extensor and flexor of forearm, forehead, and cheek were measured in 27 health male students who had never tanned their skin intentionally during this experiment with Color and Color Difference Meter(Nippon Denshoku Kogyo Ca. CP6R 1001-DP) which represents skin color as 'L', 'a', and 'b' values. The 'L', 'a', and 'b' values mean the degree of lightness, redness, and yellowness respectively. Measurements had been performed four times repeatedly from summer(june) to auturmn(October) with intervals of 6 weeks. The obtained values were evaluated with statistical method, and the results were sumrnarized as follows: l. Abdominal skin showed no significant color changes in this experiment. 2 Extensor and flexor skin of forearm showed significant decrease in lightness from July, and the degree of decrease was more remarkable on extensor skin than on flexor skin. The lighteness had not been recovered by October on extensor skin and by September on flexor skin. There was no significant change in redness and yellowness on both places in this experiment. 3. Forehead skin showed no significant change in lightness and yellowness in this experiment, and showed transient decrease in redness in July. 4. Cheek skin showed no significant change in lighteness and redness in this experiment, and showed transient increase in yellowness in October.
Abdomen
;
Cheek
;
Forearm
;
Forehead
;
Humans
;
Intention
;
Male*
;
Skin*
;
Triacetoneamine-N-Oxyl
6.An Experimental Study on Sweat Secretion During 2 Hours of Heat Exposure.
Chung Koo CHO ; Won hyoung KANG ; Sung Nack LEE
Korean Journal of Dermatology 1984;22(2):127-136
Impaired sweating reportedly has been associated with a high incidence of heat pyrexia. An important cause is attributed to sweat gland fatigue following intense prolonged sweating. For further investigation, sweat gland fatigue was induced by heat exposure for 2 hours in a hot room (dry bulb 46c, wet bulb 37c) with 9 healthy subjects. Sweating rate of the right forearm increased progressively for the first 45 minutes with a maximum value of 40.0mg/4. 91 cm2/15 min followed by a slow decrease to 24.9 mg/4.91cm2/15 min at the end of 2 hours. Active sweat pores decreased in number following 2 hours of heat exposure but the differences were not significant statistically. In spite of the higher sweat rate on the back, the number of active sweat pores was smaller as compared to the right forearm. Na+ concentrations of the second hour sweat collections were higher than those of the first hour with difference of 14. 9 mEq/l on the right forearm and 12.3 mEq/1 on the back.
Fatigue
;
Fever
;
Forearm
;
Hot Temperature*
;
Incidence
;
Sweat Glands
;
Sweat*
;
Sweating
7.Association of Herpes Zoster and Lymphosarcoma: Report of one Case.
Seung Ki PARK ; Chung Koo CHO ; Tae Ha WOO
Korean Journal of Dermatology 1970;8(1):89-91
Herpes zoster is generally believed to be caused by the activation of varicella-zoster virus present in the body since an original infection with varicella. According to the thesis, the virus remairis in a latent state in the cells of the sensory ganglia until immunity has waned sufficiently to pezmit multiplication of the virus and clinical infection. There are a number of reports that in patient with malignant disease, especially Jymphoma, a frequenry af association of zoster is greater and severity of its symptom is increased to be marked contrast to the benign uneventful course of zoster seen in healthy person. The author observed one case of zoster seen in patient with malignant disorder, and frequency of association of zoster in malignant disease and its etiological factors are reviewed in the literature.
Chickenpox
;
Ganglia, Sensory
;
Herpes Zoster*
;
Herpesvirus 3, Human
;
Humans
;
Lymphoma, Non-Hodgkin*
8.Erythema ANnulare Centrifugm: Report of one Case.
Doo Han KIM ; Hong Sang CHIN ; Chung Koo CHO
Korean Journal of Dermatology 1977;15(1):95-99
Erythema Annulare Centrifugum is characterized by migratory annular, arcuate or polycyclic erythemas with central clearing. Its etiology is not conclusive but there are many reports about the etiology, i.e." due to dermatophytid"," the drugs",' intemal diseases", or" unknown etiology" etc. A case of Erythema Annulare Centrifugum with "unkown etiology" was reported. The patient revealed slightly elevated, migratory annular erythemas with central clearing on the both posterior portions of thighs. Histopathologically, there was no abnormality in the epidermis. In the dermis, cellular infiltrates sbowing fairly well demarcated perivascular coat-sleeve like arrangement and endothelial prolifera01
Dermis
;
Epidermis
;
Erythema*
;
Humans
;
Thigh
9.Alternating Topical Treatment with Perinoic Acid And Retinoid (Ro 11 - 1430) on Acne Vulgaris: therapeutic effect and side reactions.
Ji Ho KIM ; Chung Koo CHO ; Sung Nack LEE
Korean Journal of Dermatology 1980;18(4):281-286
The retinoic acid and retinoid(Ro 11-1430) were alternately applied topically on forty patients with acne vulgaris. Therapeutic effects and side reactions of this regimen were compared with our previous studies of the treatment with retinoic acid alone and with retinoid alone. Compared with the treatment with retinoic acid alone, the therapsutic effect of the alternating treatment was relatively superior as indicated by the markedly reduced severity of local side reactions.
Acne Vulgaris*
;
Humans
;
Tretinoin
10.IgE in atopic dermatitis.
Hye Won CHEON ; Chung Koo CHO ; Sung Nack LEE
Korean Journal of Dermatology 1981;19(6):847-851
Serum IgE values were determined in 100 patients vith atogic dermatitis in the Department of Dermatology at Severance Hospital, Yonsei University College of Medicine, from Oct. 1, 1978 to Mar. 31, 1980. Mean IgE value of patients is 293. 4 unit/ml which is significantly higher than reference value, and the following results were obtained. 1. The mean IgE value in adults with atopic dermatitis, 339.8 unit/ml, 30 cases: more tian 16 years old) was significantly higher than in children(251. 4 unit /ml, 70 cases). 2. Male patierts showed higher IgE va,lue (mean 324. 5 unit/ml, 62 cases,' than female patients (242.7 unit/ml, 38 cases). 3. No close correlation was demonstrated between IgE values and eosiniphils in blood. 4. Patients with parasitic infesta,tion (5 cases) showed relatively increased IgE values (mean; 116. 2 unit/ml;. 5. Patients wifh bronchial asthma (2 cases) showed high IgE values exceeding 1000 unit/ml, 6. IgE. values roughly correlated with severity of the dermatitis. Four cases with high IgE values exceeding 1000 unit/ml were included in the clinically severe group.
Adult
;
Asthma
;
Dermatitis
;
Dermatitis, Atopic*
;
Dermatology
;
Female
;
Humans
;
Immunoglobulin E*
;
Male
;
Reference Values