BACKGROUND: Ultraviolet light induces sunburn, ageing of the skin, pigmentation and even promotes skin cancers. As there has been a recent decrease in the ozone layer surrounding the earth, increasing attention has been given to the effects of ultraviolet light on the skin. Through human epidermis, ultraviolet light is reflected, scattered, absorbed or transmitted. In caucacians, the rate of transmitted ultraviolet light A from the epidermis to the dermis is 50% and the rate of transmitted ultraviolet light B is below 10%. OBJECTIVE: The purpose of this study was to evaluate the transmittance of UVA and UVB on Korean normal epidermis. METHODS: Pure epidermis was obtained from normal human epidermis by suction of blisters in 12 patients with vitiligo. All specimens were irradiated respectively with UVA and UVB and the amount of transmitted energy was measured. RESULTS: 1. The transmittance of UVA energy density by normal epidermis was 47.7+11.2% of irradiated UVA energy. 2. The transmittance of UVB energy density by normal epidermis was 32.4+3.4% of irradiated UVB energy. CONCLUSION: UVA energy transmission through normal epidermis of Korean is less than those of Caucacians but UVB energy transmission through nor mal epidermis of Korean is more than those of Caucacians. It is suggested that this could be an important basic data to study for photoaging and photoprotection in Korean population.
Blister ; Dermis ; Epidermis* ; Humans* ; Pigmentation ; Skin ; Skin Neoplasms ; Stratospheric Ozone ; Suction ; Sunburn ; Ultraviolet Rays ; Vitiligo

To investigate the changes of electrolytes and bio-chemical components during hemodialysis in 15 patients(7 men and 8 women) with end-stage renal disease undergoing long-term hemodialysis were studied. The mean age of 15 patients undergoing long-term hemodialysis was 45 year(range ; 26-62). The mean duration of hemodialysis was 58 months(range: 19-143) at time of the study. Hemodialysis was performed with acetate dialy- sate having 37mEq/1 acetate and 8.57g/100ml glu-cose(group A), with bicarbonate dialysate having 8 mEq/1 acetate and 30mEq/1 bicarbonate without glu-cose(group B) for 4-hour. Each blood sample was drawn for blood gas analysis, blood glucose, blood urea nitrogen and electrolytes from the arterial line at 0, 1, 2, 3, and 4-four during hemodialysis. In group A, the body temperature measured at 1 hour increased significantly compared with that of predialysis. The blood glucose level increased pro-gressively during dialysis. In group B, the body temperature measured at 1 hour also increased sig- nificantly compared with that of predialysis. However, the blood glucose level increased progressively during dialysis as removing urea in blood during dialysis. These results suggested that blood urea nitrogen may be a cause of hypothermia. Mean corpuscular volume(MCV) increased significantly at 2-hour in group A and returned to baseline values at 4-hour. In group B, the mean level of glucose value in dialysate of outlet line of dialyzer increased to 38.3mg/dl from zero in inlet line, and PaC&z decreased significantly because of diffusion of COz across the dialyzer. In Group A, PaOz decreased significantly at 1-hour and returned to baseline values at 4-hour, whereas HCC4 was increased significantly at 4-hour. The intracellular potassium content may decreased in long-term hemodialysis patients cornpared with normal control. In Group A, hernoglobin diphosphoglycerate(2, 3-DPG) concentraion increased from 10.9 pmoVg before dialysis to 19.9pmol/g after dialysis. Despite substantial anemia, hemoglobin 2, 3-DPG prior to dialysis was significantly lower than the value obtained in the normal control(17.5+4.3 p moVg). In group A, the blood lactate level decreased significantly at 1-hour and returned to baseline values at 4-hour. Our data suggested that body temperature might be increased due to removal of urea nitrogen, and blood glucose may be decreased because of the dif- fusion across dialyzer. In addition, this study showed that intracellular potassium content was lowered, the MCV of RBC was increased during hemodialysis. Transient decrement of PaCOz during early phase of dialysis and decreased hemoglobin 2, 3-DPG of despite anemia before dialysis improved with the increment of blood pH and HCC4 at the end of dialysis.
Anemia ; Bays ; Blood Gas Analysis ; Blood Glucose ; Blood Urea Nitrogen ; Body Temperature ; Dialysis ; Diffusion ; Electrolytes* ; Glucose ; Humans ; Hydrogen-Ion Concentration ; Hypothermia ; Kidney Failure, Chronic ; Lactic Acid ; Male ; Nitrogen ; Potassium ; Renal Dialysis* ; Urea ; Vascular Access Devices

No abstract available.
Hysterectomy* ; Lymph Node Excision* ; Lymph Nodes*

No abstract available.
Hysterectomy* ; Lymph Node Excision* ; Lymph Nodes*

No abstract available.
Encephalitis, Herpes Simplex* ; Herpes Simplex*

No abstract available.
Encephalitis, Herpes Simplex* ; Herpes Simplex*

Regardless of the any cause leg ulcers are painful and inconvenient to patients and present clinical and economic problems due to their chronicity. Conventional skin grafts, cultured allogenic epidermis, and cultured autologous epidermis have been used for the treatment of leg ulcers. In a twenty-year-old woman with leg ulcers, autologous pure epidermal sheets were obtained from the lower chest by means of suction blisters and grafted to the leg ulcers. All lesions were healed completely in 20 days after grafting. The donor sites showed slight postinflammatory hyperpigmentations without scars. The autologous epidermal graft using suction blisters appears to be a useful method for the treatment of leg ulcers, with no immunologic rejection, no need for cultivation and anesthesia, no desiccation, and no scars on the donor sites.
Anesthesia ; Blister* ; Cicatrix ; Desiccation ; Epidermis ; Female ; Humans ; Leg Ulcer* ; Leg* ; Methods ; Skin ; Suction* ; Thorax ; Tissue Donors ; Transplants*

OBJECTIVES: To investigate the factors associated with symptoms from job stress among Korean dental laboratory technicians. METHODS: We collected the data of 786 technicians for life-style, job stressor, social support, self-esteem, personality, and various dimension of stress symptoms included roomatization, obsessive-compulsive, interpersonal sensitivity, depression, anxiety, and hostility by self-administerd questionnaire. Global severity index of dental technician (GSID) was calculated by total sum of sub-dimension. RESULTS: We used 80 percentile as a cut-off point, and got the 81.5 % of sensitivity, 86.1 % of specificity by receiver operating characteristic curve. The odds ratios of various factors in high group of GSID compared with low group were 1,49(95 % Cl 1.00-2.00) for smoker, 1,53 (1.06-2.21) for unhealthy group, 6,69 (4.74-9.44) for work overload, 8.34(5.82-11.97) for work demand, 9.89 (6.76-74.94) for work process, 8.27 (5.80-11,79) for work environment, 5.82 (4.04-8.39) for interpersonal relationship, 8.34 (5.82-11.97) for occupational conflict, 5.70 (4.04-8.04) for labor remuneration, 7.58 (5.37-10.71) for role conflict, but 0.39 (0.27-0.57) for social support, 0.41 (0.29-0.60) for self-esteem. By multiple logistic regression, factors were significantly associated with GSID were age, working area, role overload, work demand, work procedure, physical environment, occupational conflict, role conflict, social support, personality traits. CONCLUSIONS: Factors associated with symptoms from stress were role overload, work demand, work procedure, occupational conflict, interpersonal relationship, labor remuneration and role conflict in Korean dental laboratory technicians. It is suggested that health promotion program to reduce job stress and to enforce social support and self-esteem should be developed.
Anxiety ; Dental Technicians ; Depression ; Health Promotion ; Hostility ; Humans ; Laboratories, Dental* ; Logistic Models ; Odds Ratio ; Questionnaires ; Remuneration ; ROC Curve ; Sensitivity and Specificity

We performed case-control studies for the 1, 138 Korean adult men. According to the results of UGIS, we classified the gastritis into the erosive gastritis, superficial gastritis, and hypertrophic gastritis. And then, we selected controls among non-gastritis group after matching. Alcohol intake and smoking history was obtained by questionnaire. And we observed the effects of alcohol intake and smoking to the each gastritis. The results obtained were as follows; 1. Smokers had a risk of getting erosive gastritis more than twice (2.6) than non-smokers and there was dose-response relationships between smoking and erosive gastritis. Alcohol intake, however, had no significant relation with the erosive gastritis. 2. Both smoking and alcohol intake had no significant relations with superficial gastritis. 3. Smoking had no significant relation with hypertrophic gastritis, but dividing between those who drank more than 100gm of alcohol a week and those who drank less, we obtained the odds ratio of 3. 4 suggesting that there existed a significant relation between moderate or excessive alcohol intake and hypertrophic gastritis. 4. Among the gastritis patients, those who had erosive gastritis smoked most heavily, and those who had hypertrophic gastritis drank most excessively.
Adult* ; Case-Control Studies* ; Gastritis* ; Gastritis, Hypertrophic ; Humans ; Male ; Odds Ratio ; Surveys and Questionnaires ; Smoke* ; Smoking*

No abstract available.
Cholesterol* ; Granuloma*