1.Effects of UVA and UVB on aiability and DNA synthesis of human lymphocyte.
Korean Journal of Dermatology 1992;30(1):18-26
No abstract available.
DNA*
;
Humans*
;
Lymphocytes*
2.Effects of PUVA on viability and DNA synthesis of human lymphocyte.
Korean Journal of Dermatology 1991;29(6):735-744
No abstract available.
DNA*
;
Humans*
;
Lymphocytes*
3.Clinical Study on Pruritus During Pregnancy.
Dae Hun SUH ; Jong Kwan JUN ; Sang Ho YOUN ; Jin Ho CHUNG ; Jai Il YOUN
Annals of Dermatology 1997;9(4):270-275
BACKGROUND: Pruritus, which is a frequent accompanying symptom of dermatological diseases, is also common during pregnancy, either localized or generalized. It may be related to specific dermatoses of pregnancy. OBJECTIVE: A clinical study was performed to know the exact nature of pruritus in pregnancy. METHODS: Subjects with systemic diseases, or laboratory abnormalities were excluded. People who have had pruritic dermatologic diseases before pregnancy were also excluded. One hundred and fifty five pregnant women were interviewed with physical examinations and followed up to the date of delivery. Pruritus was graded. RESULTS: Pruritus was present in 31.6%. Most affected subjects had mild or moderate severity. The abdomen was the most common site. There was a tendency for the duration of itching to increase with the duration of pregnancy. CONCLUSION: Conclusion: These findings may provide basic and useful data on pruritus during pregnancy.
Abdomen
;
Clinical Study*
;
Female
;
Humans
;
Physical Examination
;
Pregnancy*
;
Pregnant Women
;
Pruritus*
;
Skin Diseases
4.Effects of Power Output and Energy Density on the Histologic Change of Guinea pig Skin Following Copper Vapor Laser Irradiation.
Woo Seok KOH ; Jin Ho CHUNG ; Jai Il YOUN
Korean Journal of Dermatology 1994;32(4):591-598
BACKGROUND: Recentliy copper vapor laser(CVL) has been applied with encouraging results in the treatment of port wine stain. The CVL emits yellow light(578nm) in a sequence of about 10,000 to 15,000 pulses/second(10-15kHz) with a pulse duration of 15-50 cases. One of the basic methods of evaluationg the effects of laser lights is to study histologic changes after laser irradiation. OBJECTIVE: The effects of power output and energy density on the histologic change of guinea pig skin following CVL irradiation was evaluted to suggest a way of deciding parameters of CVL to achieve the best clinical results. METHODS: After setting the power output for one of 0.8W, 1.6W and 2.4W, the laser was irradiated with an energy density of 10, 12, 14, 16, 18, 20J/cm. A biopsy was done 15 minutes after irradiation and the biopsy specimens was stained with H&E and NBTC histocberr ical method. RESULTS: 1. At the power of 0.8W, specimens irradiated with an energy density above 14J/cm showed diffuse nonspecific coagulation necrosis of the epidermis and upper dermis. 2. At the power of 1.6W, specimens irradiated with energy density of 14, 16J/cm showed coagulation necrosis of dermal vessel and perivascular collagen. With energe density of 18, 20J/cm, diffuse nonspecific coagulat,ion necrosis of epidermis and upper dermis were observed. 3. At the power of 2.4W, specimens irradiated with an anergy density of 12, 14, 16, 18J/cm showed coagulation necrosis of the dermal vessel and perivascular collagen. With an energy density of 20J/cm, diffuse nonspecific coagulation necrosis of the epidermis and upper dermis was observed. CONCLUSIONS : With the above results it was found that t,he higher power output of CVL enlarged the range of energy density confining thermal damage to the dermal v-ssels and perivascular collagen. Additionally the higher power raised the upper limit of energy density with which t,he epidermis was viable.
Animals
;
Biopsy
;
Collagen
;
Copper*
;
Dermis
;
Epidermis
;
Guinea Pigs*
;
Guinea*
;
Herpes Zoster
;
Humans
;
Inpatients
;
Lasers, Gas*
;
Necrosis
;
Port-Wine Stain
;
Skin*
5.Effects of Power Output and Energy Density on the Histologic Change of Guinea pig Skin Following Copper Vapor Laser Irradiation.
Woo Seok KOH ; Jin Ho CHUNG ; Jai Il YOUN
Korean Journal of Dermatology 1994;32(4):591-598
BACKGROUND: Recentliy copper vapor laser(CVL) has been applied with encouraging results in the treatment of port wine stain. The CVL emits yellow light(578nm) in a sequence of about 10,000 to 15,000 pulses/second(10-15kHz) with a pulse duration of 15-50 cases. One of the basic methods of evaluationg the effects of laser lights is to study histologic changes after laser irradiation. OBJECTIVE: The effects of power output and energy density on the histologic change of guinea pig skin following CVL irradiation was evaluted to suggest a way of deciding parameters of CVL to achieve the best clinical results. METHODS: After setting the power output for one of 0.8W, 1.6W and 2.4W, the laser was irradiated with an energy density of 10, 12, 14, 16, 18, 20J/cm. A biopsy was done 15 minutes after irradiation and the biopsy specimens was stained with H&E and NBTC histocberr ical method. RESULTS: 1. At the power of 0.8W, specimens irradiated with an energy density above 14J/cm showed diffuse nonspecific coagulation necrosis of the epidermis and upper dermis. 2. At the power of 1.6W, specimens irradiated with energy density of 14, 16J/cm showed coagulation necrosis of dermal vessel and perivascular collagen. With energe density of 18, 20J/cm, diffuse nonspecific coagulat,ion necrosis of epidermis and upper dermis were observed. 3. At the power of 2.4W, specimens irradiated with an anergy density of 12, 14, 16, 18J/cm showed coagulation necrosis of the dermal vessel and perivascular collagen. With an energy density of 20J/cm, diffuse nonspecific coagulation necrosis of the epidermis and upper dermis was observed. CONCLUSIONS : With the above results it was found that t,he higher power output of CVL enlarged the range of energy density confining thermal damage to the dermal v-ssels and perivascular collagen. Additionally the higher power raised the upper limit of energy density with which t,he epidermis was viable.
Animals
;
Biopsy
;
Collagen
;
Copper*
;
Dermis
;
Epidermis
;
Guinea Pigs*
;
Guinea*
;
Herpes Zoster
;
Humans
;
Inpatients
;
Lasers, Gas*
;
Necrosis
;
Port-Wine Stain
;
Skin*
6.Effects of Passive Smoking on Pulmonary Function in Adults.
Yun Ryung JUNG ; Chang Ho YOUN ; Hae Jin KO
Korean Journal of Health Promotion 2011;11(3):115-121
BACKGROUND: Passive smoking is an important worldwide public health issue. In many Korean studies, parental smoking has been reported to be associated with reduced pulmonary function in children. But few studies have evaluated the effects of passive smoking on pulmonary function in adults. Therefore, we looked into this association in the study. METHODS: Participants in the study included non-smoking, healthy men (n=46) and women (n=326) from rural Korea enrolled from June to December 2006. Exposure to passive smoking was assessed by a self-administered questionnaire, and standardized pulmonary function tests were performed. RESULTS: There were significant reductions in forced expiratory volume in 1 second (FEV1, % of predicted) and forced mean expiratory flow rate 25-75% (%) among the men exposed to passive smoke compared with those not exposed (55.7 vs 75.8, P=0.010; 33.9 vs 58.6, P=0.029, respectively). There were significant reductions in FEV1 among men exposed at both workplace and home compared with men exposed only at either workplace or home (42.8 vs 49.3, 64.6; P=0.034). No significant difference in pulmonary function was found between women exposed to passive smoke compared those not exposed. There were, however, reductions in FEV1 and FEV1/forced vital capacity among the women exposed at workplace. Regression analysis showed that passive smoking negatively affected lung function, which were not statistically significant. CONCLUSIONS: Exposure to environmental tobacco smoke, particularly at the workplace, adversely affects pulmonary function in adults.
Adult
;
Child
;
Female
;
Forced Expiratory Volume
;
Humans
;
Korea
;
Lung
;
Male
;
Parents
;
Public Health
;
Respiratory Function Tests
;
Smoke
;
Smoking
;
Tobacco
;
Tobacco Smoke Pollution
;
Vital Capacity
;
Surveys and Questionnaires
7.The in vitro effect of ultraviolet radiation on the production of IL-1 by human keratinocyte and the influence of retinoid.
Jin Ho CHUNG ; Hee Chul EUN ; Jai Il YOUN
Korean Journal of Immunology 1993;15(2):173-182
No abstract available.
Humans*
;
Interleukin-1*
;
Keratinocytes*
9.Primary Carcinoma of the Ureter: Report of Two Cases.
Ho Youn LEE ; Soo Eung CHOI ; Tai Jin KIM
Korean Journal of Urology 1975;16(1):63-67
Two cases of primary carcinoma of the ureter were reported with review of the literatures.
Ureter*
10.A Study on the Effect of Superoxide Dismutase to Sunburn Cell Production in Mouse Skin By Ultraviolet Irradiation.
Jin Ho CHUNG ; Jai Il YOUN ; Yoo Shin LEE
Korean Journal of Dermatology 1988;26(5):636-644
This study was undertaken to investigate the effect of superoxide dismutase(SOD) to sunburn cell production and development of UV-induced ear swelling reaction in mouse skin after ultraviolet irradiation. In this study, a total of 60 ICR female albino haired mice were used and divided into two groups, A(UVB: 150mJ/cm) and B(UVB:300mJ/cm). Groups of mice were injected intravenouly with SQD(300mJ,/1000cm) just befare UVR and after completion of UVR. The results were as follows . 1. The number of sunburn cells was significantly decreased by injection of SOD (300ug.1000ug)(p<0.05). 2. The number of sunburn cells in a group of mice which was given SOD 1000ug was significantly decreased more than in SOD 300pg(p<0.05). 3. Ear swelling reaction was not significantly suppressed by injection of SOD(300 Pa. 100SC)(p<0 05)
Animals
;
Ear
;
Female
;
Hair
;
Humans
;
Mice*
;
Skin*
;
Sunburn*
;
Superoxide Dismutase*
;
Superoxides*