BACKGROUND: PUVA has been used effectively in the treatment of vitiligo, but the mechanism by which PUVA stimulates melanocyte proliferation in vitiligo is not known. Several mechanisms have been suggested to be involved in the process of repigmentation of vitiligo. First, UV light, with or without psoralen, directly stimulates the proliferation of melanocytes. Secondly, PUVA may act. on epidermal keratinocytes or dermal components to stimulate t,hem to release certain melanocyte growth st,inulation factors that enhance the proliferation of melanocytes in depigmented lesions. Thirdly, PUVA irnmunologically leads to the impairment of epidermal Langerhans cell function and alteration of circulating T and B cell function, which results in the suppression of the stimuli is for rnelanocyte destruction during the therapy. OBJECTIVE: To test, th hypothesis that PUVA induced repigmentation in vitiligo results from the stimulation of growth factors that induce melanocyte proliferation, and that PUVA may suppress the immune reacticin to melanocytes, especially in autoantibody synt,hesis, we examined the effects of sera on the growth of epidermal melanocytes and control cells, and the incidence of antibodies to melanocyte and melanoma cells(SK-Mel 2~3) in the sera of patients with vitiligo. We also had normal control individuals and studied the changes of the antibody titer in the sera of patients with vitiligo. METHODS: The rate of H thymidine uptake was estimat,ed in cultured melanocytes and fibroblasts t,reated by patients sera before and after PUVA treatment. SDS-PAGE and immunoblotting analysis were used to idcntify anti pigment cell autoantibodies and were compared to the titers of autoantibodies after PUVA. RESULTS: 1. Melanocyte and fibrablast proliferation was increased by PUVA treated sera. Their proliferation was in proportion to the duration of the PUVA treatment. Melanocytes proliferated more than fibroblasts. 2. Significant differences between vitiligo patients and normal controls were found in the inci dence of anti-pigment cell antibodies. The antibodies were predominantly directed to melanocyte antigens of 110 kD, 65 kD, 45 kD and melanoma cell antigens of 110 kD, 103 kD, 88kD, 70 kD, 56 kD, 41 kD. 3. The titer of anti piment cell antibodies showed a tendency to decrease after PUVA treat- ment in most patients regardless of clinical improvement. Conclusion ; PUVA treated sera induced proliferation of melanocytes and fibroblasts and the production of aut,oantibodies was suppressed against pigment cell antigens through irnmunosuppression, which might help in the repigmentation of vitiligo.
Antibodies ; Autoantibodies ; Candida* ; Classification* ; DNA* ; Electrophoresis, Polyacrylamide Gel ; Fibroblasts ; Ficusin ; Humans ; Immunoblotting ; Incidence ; Intercellular Signaling Peptides and Proteins ; Keratinocytes ; Melanocytes ; Melanoma ; Thymidine ; Ultraviolet Rays ; Vitiligo

BACKGROUND: PUVA has been used effectively in the treatment of vitiligo, but the mechanism by which PUVA stimulates melanocyte proliferation in vitiligo is not known. Several mechanisms have been suggested to be involved in the process of repigmentation of vitiligo. First, UV light, with or without psoralen, directly stimulates the proliferation of melanocytes. Secondly, PUVA may act. on epidermal keratinocytes or dermal components to stimulate t,hem to release certain melanocyte growth st,inulation factors that enhance the proliferation of melanocytes in depigmented lesions. Thirdly, PUVA irnmunologically leads to the impairment of epidermal Langerhans cell function and alteration of circulating T and B cell function, which results in the suppression of the stimuli is for rnelanocyte destruction during the therapy. OBJECTIVE: To test, th hypothesis that PUVA induced repigmentation in vitiligo results from the stimulation of growth factors that induce melanocyte proliferation, and that PUVA may suppress the immune reacticin to melanocytes, especially in autoantibody synt,hesis, we examined the effects of sera on the growth of epidermal melanocytes and control cells, and the incidence of antibodies to melanocyte and melanoma cells(SK-Mel 2~3) in the sera of patients with vitiligo. We also had normal control individuals and studied the changes of the antibody titer in the sera of patients with vitiligo. METHODS: The rate of H thymidine uptake was estimat,ed in cultured melanocytes and fibroblasts t,reated by patients sera before and after PUVA treatment. SDS-PAGE and immunoblotting analysis were used to idcntify anti pigment cell autoantibodies and were compared to the titers of autoantibodies after PUVA. RESULTS: 1. Melanocyte and fibrablast proliferation was increased by PUVA treated sera. Their proliferation was in proportion to the duration of the PUVA treatment. Melanocytes proliferated more than fibroblasts. 2. Significant differences between vitiligo patients and normal controls were found in the inci dence of anti-pigment cell antibodies. The antibodies were predominantly directed to melanocyte antigens of 110 kD, 65 kD, 45 kD and melanoma cell antigens of 110 kD, 103 kD, 88kD, 70 kD, 56 kD, 41 kD. 3. The titer of anti piment cell antibodies showed a tendency to decrease after PUVA treat- ment in most patients regardless of clinical improvement. Conclusion ; PUVA treated sera induced proliferation of melanocytes and fibroblasts and the production of aut,oantibodies was suppressed against pigment cell antigens through irnmunosuppression, which might help in the repigmentation of vitiligo.
Antibodies ; Autoantibodies ; Candida* ; Classification* ; DNA* ; Electrophoresis, Polyacrylamide Gel ; Fibroblasts ; Ficusin ; Humans ; Immunoblotting ; Incidence ; Intercellular Signaling Peptides and Proteins ; Keratinocytes ; Melanocytes ; Melanoma ; Thymidine ; Ultraviolet Rays ; Vitiligo

No abstract available.
Takayasu Arteritis*

We report a case of type IV hyperlipoproteinemia associated with xanthoma tuberosum and diabets mellitus in a 48 year old female patient. She had several yellowish-brown papules on the knees and palms. The blood glucose level was elevated and serum lipid and lipoprotein analysis revealed patterns of type IV hyperlipoproteinemia. Histopathologic findings of yellowish-brown papules on the knee showed the aggregation of foam cells in the dermis. She has been treated with diet control and hypolipidemic drug(lovastatin and procetofen) and is under our continuing supervision.
Blood Glucose ; Dermis ; Diabetes Mellitus* ; Diet ; Female ; Foam Cells ; Humans ; Hyperlipoproteinemia Type IV* ; Knee ; Lipoproteins ; Middle Aged ; Organization and Administration ; Xanthomatosis*

Using audiometric test data, noise exposed workers were followed up to assess the activities for hearing conservation from 1989 to 1992. The subjects of study were 71 workers who could be followed up at least two years during this follow-up period. In all subjects, increasing trend of hearing threshold levels (HTLs) was observed after three years of follow-up at all testing frequencies in audiometry and this increase was statistically significant at 8KHz(p<0.05). Also, HTLs increased significantly(p<0.05) in the workers who complained tinnitus(at 0.25, 8KHz), who ws below 90 dB (at 8KHz). Effectiveness of the activities for hearing conservation, assessed by sequential test-retest comparisons, was lower in the workers who complained tinnitus, who had past history of ear disease, and whose workplace noise level was below 90 dB. These findings suggest that the activities for hearing conservation at workplace may have been unsatisfactory until now and more stringent measures may be necessary, especially in the workers who complain tinnitus, who have past history of ear disease, and whose workplace noise level is below 90dB.
Audiometry ; Ear Diseases ; Follow-Up Studies ; Hearing* ; Noise ; Tinnitus

We report a case of subungual solitary glomus tumor in a 28-year-old female, who has suffered from pain and tenderness of the left 4th finger tip for about 5 years. Simple surgical excision was performed for removal of the tumor mass and for the relief of the subjective symptoms. No recurrence has been observed for 5 months following excision of the tumor.
Adult ; Female ; Fingers ; Glomus Tumor* ; Humans ; Recurrence

Anthrax in man is usually cutaneous, resulting from contact with materials derived from infected livestock. Internal organs are infrequently involved,. This report concerns a case of primary anthrax of intestine. The first case of primary anthrax of intestine is to our knowledge in Korea. The patient was a 14-year-old male who has complained of nausea, vomiting and acute abdominal pain. History was otherwise noncontributory except for ingestion raw meat of the dead cattle, one day before the onset of the disease. The cattle presumably died due to Bacillus anthracis in a village Bae-Ban Dong in the city of Kyung ju, Kyung Pook. Among 15 sufferers, 2 cases died 3 days later. Bacillus anthracis isolated from the raw beef, blood samples of two patients and throat culture of one patient. At laparotomy, the peritoneal cavity was full of serosanginous fluid. Right hemicolectomy including partial resection of ileum was done. The bowel was segmentally dilated, hemorrhagic and necrotic, especially at terminal ileum. The mucosa was edematous and largely ulcerated covered with greenish yellow exudate. The intense vascular congestion with hemorrhage and numerous colonization of bacteria were present through the entire wall. The organisms were large, gram-positive and PAS-negative bacilli in long chain. Bacterial emboli were scattered in lymphatics. The other feature was band like lymphoid cell infiltration in ulcer base and submucosal layer. Payer's patches were prominent and the germinal centers were necrotic. Interfollicular spaces exhibited aggregates of numerous atypical lymphoid cells. The cells were five times larger than resting lymphocytes and had several prominent nucleoli and abundant amphophilic cytoplasm. On immunohistochemical staining, most of atypical cells were positive for T-cell marker and Ki-I Ag. The mesenteric lymph nodes were enlarged, showing reactive feature, and the atypical cells were also demonstrated. The patient recovered completely.
Male ; Humans

Colonic angiodysplasia is important because of the likelihood of lower gastrointestinal tract bleeding, either massively or chronically. A 66-year-old male patient visited our hospital because of hematochezia and lower abdominal discomfort. He underwent colonoscopy, which revealed 0.5 cm sized, cherry red colored, branching, ozzing vessel with fern-like margin on cecum. Although he received endoscopic injection therapy with hypertonic saline and oral estrogen-progesterone therapy, subsequent ileocecal resection was performed due to recurrent bleeding. Histology of the resected specimen showed irregularly dilated, distorted, thin-walled vessels in submucosa.
Aged ; Angiodysplasia* ; Cecum ; Colon* ; Colonoscopy ; Gastrointestinal Hemorrhage ; Hemorrhage* ; Humans ; Lower Gastrointestinal Tract ; Male ; Prunus

It is Known that ocular tuberculosis occurs as a consequence of active infection from hematogenous spread or a hypersensitivity reaction to circtlating tuberculoproteins. The common findings of ocular tuberculosis are uveitis and choroidal tuberculoma. Paralleling the decrease of pulmonary tuberculosis and improvemem of differential diagnostic metnods, there has been a dramatic decline in the number of diagnosed cases of ocular tuberculosis. In a 65-year-old female a choroidal tumor was diagn03ed at our hospital a year ago Thereafter, she has been medicated with antituberculotic agents for brain tuberculosis in the other hospital. Recently she returned to our clinic cOffiJlaining of aggravated ocular symptom. The right vision was no light perception Enucleation of her right eye was perfomed under the impression of malignant tumor of choroid with secondary glaucoma. Pathologic findings of enucleated eyeball revealed the nature of tuberculoma; so, we report it with a review of literature.
Aged ; Brain ; Choroid* ; Female ; Glaucoma ; Humans ; Hypersensitivity ; Tuberculoma* ; Tuberculosis ; Tuberculosis, Ocular ; Tuberculosis, Pulmonary ; Uveitis

It is Known that ocular tuberculosis occurs as a consequence of active infection from hematogenous spread or a hypersensitivity reaction to circtlating tuberculoproteins. The common findings of ocular tuberculosis are uveitis and choroidal tuberculoma. Paralleling the decrease of pulmonary tuberculosis and improvemem of differential diagnostic metnods, there has been a dramatic decline in the number of diagnosed cases of ocular tuberculosis. In a 65-year-old female a choroidal tumor was diagn03ed at our hospital a year ago Thereafter, she has been medicated with antituberculotic agents for brain tuberculosis in the other hospital. Recently she returned to our clinic cOffiJlaining of aggravated ocular symptom. The right vision was no light perception Enucleation of her right eye was perfomed under the impression of malignant tumor of choroid with secondary glaucoma. Pathologic findings of enucleated eyeball revealed the nature of tuberculoma; so, we report it with a review of literature.
Aged ; Brain ; Choroid* ; Female ; Glaucoma ; Humans ; Hypersensitivity ; Tuberculoma* ; Tuberculosis ; Tuberculosis, Ocular ; Tuberculosis, Pulmonary ; Uveitis