The sunscreening effect can be varied according to the vehicles. Therefore the purpose of this study is to compare the effect of vehicles(bases) on sun protection in p-aminobenzoic acid, cinnamate and benzophenone sunscreens with same concentration (2.5%), We included ointment (white petrolatum), cream (hydrophilic), milky lotion and alcohol as the sunscreen vehicles. The test results can be summarized as follows: We could not recognize a sunscreening effect of sunscreen vehicles which did not contain sunscreening agent. In the case of p-aminobenzoic acid, the mean sun protection factor was higher in the sequence of cream, milky lotion, alcohol, ointment, each showing 9, 95+/-3.67, 8.09+/-2.56, 5.14+/-1.45, 4.35+/-1.46 respectively. In the case of cinnamate, the mean sun protection factor was higher in the sequence of cream, ointment, milky lotion, alcohol, each showing 6 46+/-1.89, 5.42+/-1.49, 4.82+/-1.84, 4.05+/-1.45 respectively. 4. In the case of benzophenone, the mean sun protection factor was higher in the sequence of cream, alcohol, ointment, milky lotion, each showing 5 .26+/-1.56, 4.94+/-1.24, 4.56+/-1.71, 4.18+/-1.23 respectively.
4-Aminobenzoic Acid ; Skin* ; Solar System ; Sun Protection Factor ; Sunscreening Agents

No abstract available.
DNA* ; Humans* ; Lymphocytes*

This study was undertaken to observe the effect of the preirradiation of UVA on the eryt,hematous reaction by UVB. Twenty-five healthy Korean adult male volunteers were taken as subjects. The results were as follows: 1)Preirradiation of 10J/cm and 20j/cm of UVA had no influence on the erythematous reaction induced by UVB. Preirradiation of 30 J/cm of UVA decreased the minimal erythemal dose(MED) of UVB significantly (p<0,05), and 4pJ/cm of UVA dicl very significantly(p<0. 001). 2) Preirradiation dose of UVA(x) and MED of UVB(y) had statistically significant relationship (y=33. 23 - 33 x, r= -0.39, p<0. 05). So preirradiation of UVA decreased MED of UVR in relation with the preirradiation dose. 3) For the objective criteria of skin erythematous reaction induced by the UV irradiation, MED was considered more accurate and efficient than minimal perceptible dose (MPI).
Adult ; Erythema* ; Humans ; Male ; Skin ; Volunteers

A 37-year-old male with localized trichorrhexis nodosa on the scalp is described. Two circumscribed broken hair patches that had occurred as a consequence of repetitive friction trauma were seen on both retroauricular areas of scalp. Scanning electron microscopic findings revealed typical trichorrhexis nodosa.
Adult ; Friction ; Hair ; Humans ; Male ; Scalp

BACKGROUND: The Ingram regimen has been advocated for t.he treatment of psoriasis. It is an effective therapeutic moiality, but its complexity and frequent side reactions have restricted its use for therapy. There are several modified Ingrarn regimen, change of vehicle, shortening of application time, low-strerigth anthralin, combination with emollient. Previously, we have reportved the effectiveness of mocified Ingram regimen for psoriasis, however, the remission time and relapse rate of psoriasis has not been reported in Korea. OBJECTIVE: This study was performed to evaluate the efficacy of the modified Ingram region for the treatment of psoiasis and the remission time and relapse rate of psoriasis following moclified Ingram therapy. METHODS: Sixty patients with plaque-form psoriasis were treated with the modified Ingra,n therapeutic regimen. They were divided into two groups, a moderate group which included 39 patients, and 21 patients in a severe group. RESULTS: The follwing results were obtained from this study. 1. Among 60 patients, 52 patients(86.6%) were successfully healed and 8 patients(13.3%) showed failure in their t eatment. 2. In 52 patients, 44 patients(73.3%) showed a clearing of psoriasis, 8 patients(13.3%) showed some improvement. 3. In 44 cleared patients mean numbers and duration of therapy reaching grade 4 were 13.0 and 21.0 days for the trunk and 15.1 and 24.7 days for the extremities, the difference was not significant statistically(p>0.05). The difference between the total dose in trunk and extremitis was significant statistica,ly(p<0.05). 4. In 44 cleared patients mean numbers, duration and total dose of therapy reaching grade 4 in the severe group were significantly higher than those in the moderate group (p<0.05). 5. There were some rotable side effects such as staining(17.3%), erythema(15.4%) and pruitus(13.5%), but in no case therapy was terminated. 6. According to the everity in 33 of the cleared patients, we observed 10 patients(17.4%) with early relapse((6 months), 7(21.7%) with late relapse(>6 months) and 14(60.9%) with riorelapse(>12 months) in the moderate group and also observed 10 patients(70.0%) with early IP, lapse, 2(20.0%) with latrelapse and 1(10.0%) with no relapse in the severe group. 7. In 33 pat,ients who were followed up at least one year later, the mean time of remission was 31.4 months in the moderate group and 6.0 mont,hs in the severe group. There were signilicant differences in the two groups(p<0.05). CONCLUSION: The results of this study suggest that the modified Ingram regimen is one of the effective therapeutic mocialities for cases of moderate psoriasis.
Anthralin ; Extremities ; Humans ; Korea ; Psoriasis* ; Recurrence

The serologic testa for syphilis including VDRL and FTA-abs tests have been carried out in adult VISA applicants for emigration and bIood donors from February, 1977 to May, 1978. The results are summarized as followa: l. In 3,393 VISA applicants the reactive rate af VDRL test was 2.9%, and th biologic false positive rate of VDRL test was 5.1% using the FTA-abs test as the atandared. 2. VDRL test showed a positive rate of 2.3% in 6,220 blood donors. 3. The quantitative test of VDRL resulted in low titer belaw 1:4 in 93.9% of VDRL reactive VISA applicants. From the results it is clear that the prevalence of syphilis is grariually increasing recently compared to the late 1960s and early 1970s.
Adult ; Blood Donors ; Emigration and Immigration ; Fluorescent Treponemal Antibody-Absorption Test ; Humans ; Prevalence ; Skin Diseases* ; Syphilis ; Tissue Donors ; Zinc*

We have observed the dark effect of 8-methoxypsoralen(8-M(P) on the viability and DNA synthesis in human lymphocyte cultures after stimulaticn with phytohemagglutinin (PHA) in the absence of ultraviolet A radiation. The concentratioiis of 8-MOP was 0.5-32 ug/ml. We have also measured the LDH activity in supernatant. of lymphocyte cultures treated with 8-MOP. The results were as follows: 1. There was no 8-MOP dose-dependent decrease in the viability of lymphocytes up to 8- MOP 32pg/ml. 2. There was a 8-MOP dose-dependent decrease in PHA-induced DNA synthesis of lymphocytes from the concentration of 8-MOP 2 ug/ml. 3. There was a time-dependent decrease in PHA-induced DNA synthesis of lymphocytes at the concentration of 8-MOP 32 ug/ml. 4. There was no LDH release in supernatant of lymphocyte ciltu es after incubation with 8-MOP up to 8-MOP 32ug/ml.
Animals ; DNA ; Ear* ; Humans ; Lymphocytes ; Methoxsalen ; Mice ; Mice, Inbred C57BL* ; Photochemotherapy* ; Skin*

No abstract available.
DNA* ; Humans* ; Lymphocytes*

BACKGROUND: The action of ultraviolet rays on DNA causes the main photobiologic response of cells to ultraviolet rays. To study this effect, tritiated thymidine autoradiography was used. Recently 5-bromo-2deoxyuridine(BrdU), an analogue of thymidine, immunohistochemistry has been developed and is used in the detection of synthetic phase cells. Compared to autoradiography, there are several advantages of BrdU immunohistochemistry; a shorter processing time, no requirement of specific facilites. PUVA, the combination method of UVA and Psoralen has lots of photobiologic effects. OBJECTIVE: Using Brdu immunohistochemistry, the effect of PUVA on the DNA synthesis of tape stripped mouse epdermis was studied. METHOD: Mice stripped by adhesive tape for enhancing DNA synthesis were injected intraperitoneally with 50mg/kg of BrdU immediately after stripping and at 6, 12, 14, 16, 18, 20, 22, 24 and 48 hours after tape stripping for decision of the time for PUVA. The skin diopsies were taken and the specimens were stained by BrdU immunohistochemistry. Single systemic PUVA exposure was performed on the stripped epidermis in peak synthetic time after tape stripping. The irradiation dose of UVA was 5J/cm(2). 8-MOP was administered at 90 minutes before UVA irradiation via a feeding tube with the dose of 16mg/kg. Mice were injected intraperitoneally with 50mg/kg of BrdU immediately after PUVA and at 12, 24, 48, 72 hours, and 7 days after PUVA. The skin biopsies were taken and the specimens were stained by BrdU immunohistochemistry. Positively labeled cells were counted per 5mm epidermis. RESULT: The results can be summerized as follows : 1. The mean numbers of BrdU labeled cells of each groups according to time after tape stripping were 11.0+/-4.4 at immediate, 24.0+/-9.7 at 6 hours 31.4+/-18.1 at 12 hours, 55.0+/-16.1 at 14 hors, 25.8+/-9.7 at 16 hors, 44.2+/-15.7 at 18 hors, 47.6+/-15.6 at 20 hors, 33.4+/-12.3 at 22 hors, 38.0+/-16.3 at 24 hors, and 22.0+/-8.2 at 48 hors group. The mean number of BrdU labeled cells was observed at 14 hors after tape stripping (p<0.05). So by tape stripping DNA synthesis was enhanced maximally at 14 hours after tape stripping. 2. The man numbers of BrdU labeled cells of each groups according to time after PUVA were 11.0+/-7.5 at immediate, 32.2+/-13.2 at immediate, 32.2+/-13.2 at 6hors, 26.4+/-13.4 at 24 hours, 18.0+/-3.4 at 48 hours, 40.3+/-8.3 at 72 hours, and 27.8+/-11.0 at 7 days group. The lowest number of BrdU labeled cells was observed immediately after PUVA(p<0.05). The decreasein the number of BrdU labeled cells significantly persisted 48 hours after PUVA(p<0.05). CONCLUSION: The inhibitory effect on DNA synthesis of PUVA might be sustained 48 hours after PUVA. DNA synthesis was recovered at 72 hours after PUVA and sustained for 7 days.
Adhesives ; Animals ; Autoradiography ; Biopsy ; Bromodeoxyuridine ; DNA* ; Epidermis ; Ficusin ; Immunohistochemistry* ; Methoxsalen ; Mice ; Skin ; Thymidine ; Ultraviolet Rays

This study was done to study the effect of UVA radiation upon sunburn cell formation by UVB. In this study a total of 67 ICR male albino haired mice were used. The results were as follows: 1. UVA radiation produce a little or no sunburn cell in doses 5 J/cm(2), 10 J/cm(2), and 15 J/cm(2). 2. Preirradiation of UVA 5 J/cm, 10 J/cm(2), 15 J/cm(2) had no effect on the sunburn cell formation by UVB 20 mJ/cm(2), 80 mj/cm(2)
Animals ; Hair ; Humans ; Male ; Mice ; Sunburn*