Pulmonary angiodysplasia indicates all forms of abnormal intrapulmonary arteriovenous comunication, usuallycalled pulmonary arteriovenous fistula. Most frequent form of pulmonary angiodysplasia is single or multiplediscrete nodular lesion, and diffuse telangiectatic type consists another variety. More than 50% of pulmonaryangiodysplasias are associated with hereditary hemorrhagic telangiectasia. And rearely chronic liver disease iscomplicated by pulmonary arteriovenous fistula which is called hepatogenic pulmonary angiodysplasia. Weexperienced 6 cases of pulmonary angiodysplasia confirmed by cardiac catheterization and angiography from 1977 to1983. 5 cases were children below 11 years of age exhibiting cyanosis except one who has pulmonary angiodysplasiasupplied by systemic arteries. 3 were hereditary hemorrhagic telangiectasia and one was hepatogenic pulmonaryangiodysplasia. Discrete nodular pulmonary lesion was present in 3 cases while remaining 3 cases were diffusetelangiectatic type. The clinical and radiological findings of pulmonary angiocysplasia is described with a briefreview of literature.
Angiodysplasia ; Angiography ; Arteries ; Arteriovenous Fistula ; Cardiac Catheterization ; Cardiac Catheters ; Child ; Cyanosis ; Humans ; Liver Diseases ; Telangiectasia, Hereditary Hemorrhagic

Quaternium-15 (Dowicil 200) which is a water-soluble antimicrobial agent and a formaldehyde releaser is widely being used as a preservative in cosmetics and medicaments these days. However, there are scanty reports about it in the Korean literature. Recently, we have experienced two cases of Quaternium-15 contact dermatitis probably related with their cosmetics and topical medicament, respectively. We report our cases with the patch test results.
Dermatitis, Contact* ; Formaldehyde ; Patch Tests

Ovarian mature cystic teratoma containing benign prostatic tissue is rare and only 11 cases have been reported in the literature to date. We report a case of mature cystic teratoma of the ovary containing prostatic tissue. A 23-year-old female patient came to our hospital complaining of irregular menstruation for 3 months. Her menarche had occurred when she was 13 years old. The patient showed no evidence of virilization nor of endocrinopathy. A goose-egg-sized mass was palpable in the left lower abdomen on physical examination. Ultrasonography revealed a cystic ovarian mass with internal echogenecity. Microscopic finding was consistent with that of usual mature cystic teratoma except for a 1.5 cm focus of prostatic and bladder tissues. Prostatic tissue demonstrated strong immunoreactivity for prostatic specific antigen (PSA), prostatic alkaline phosphatase (PAP) and cytokeratin 7. Basal cells of the prostate glands were positive for high molecular weight cytokeratin (34betaE12). Although ovarian mature cystic teratoma containing prostatic tissue has been reported as a rare occurrence, a careful examination with immunohistochemical staining may increase the detection of prostatic tissue in mature cystic teratoma of the ovary.
Abdomen ; Adolescent ; Alkaline Phosphatase ; Female ; Humans ; Keratin-7 ; Keratins ; Menarche ; Menstruation ; Molecular Weight ; Ovary ; Physical Examination ; Prostate ; Teratoma* ; Ultrasonography ; Urinary Bladder ; Virilism ; Young Adult

The aim of this stud y was to compare the epidermal thinning properties of four corticosteroid ointments applied under occlusion, using histology and histometry. The results were surnmerized as follows: 1.The stratum corneurn was dramatically thinned, appearing as a wispy layer of horny cells as apposed to the norrnal basket-weave configuration. this effect was prominent at sites treated with clobestasol propionate, fluocinonide, and fluocinolone acetonide. 2. With the histometry, visible epidermal thickness wa.s markedly reduced. This effect w is prominent in the following ascending order: fluocinolone acetonide, fluocienonide, clobestasol-17-propionate. Hydrocortisone was the least atrophogenic. 3. Clohestasol-17-propionate and fluocinonide caused significant flattening of dermo-epidermal junction, Fluocinolone acetonide and hydrocortisone caused less pronounced cbanges. 4. Marked capillary dilation af papilly dermis is caused by clobestasol-17-propionate, fluocinonide and fluocinolone acetonide.
Adrenal Cortex Hormones* ; Atrophy* ; Capillaries ; Dermis ; Diethylpropion ; Epidermis* ; Fluocinolone Acetonide ; Fluocinonide ; Humans* ; Hydrocortisone ; Ointments

Epoxy resins,which are irritant and allergen, are now used for surface coatings, electrical insulations, adhesives, and construction industry throughout the world. However, epoxy resin contact dermatitis has not been reported in the Korean literature. We report two cases of epoxy resin contact dermatitis which were occupationally related. They have been in the same work, painting dye and resin mixtures on the glasses for decoration. They showed positive patch test reactions to epoxy resin 1, and their own materials containing resins and accelerators which were proved to be -countinue-
Adhesives ; Construction Industry ; Dermatitis, Contact* ; Eyeglasses ; Glass ; Occupations ; Paint ; Paintings ; Patch Tests

PURPOSE: This study was designed to find out whether protein kinase C (PKC) may affect telomerase activity in human ovarian cancers. MATERIALS AND METHODS: To determine whether PKC modulators influence PKC activities, NIH: OVCAR-3 and CUMO-2, cells were treated with PKC inhibitors, G 6976 and bisindolyl maleimide I, and PKC activator, 12-O-tetradecanoyl phorbol 13-acetate (TPA). Telomerase acti vity was determined by telomeric repeat amplification protocol (TRAP). Analysis of the expres sion of each telomerase subunits, human telomerase RNA (hTR) and human telomerase reverse transcriptase (hTERT), was performed by RT-PCR. We also examined the alternative splicing of hTERT. RESULTS: G 6976 and bisindolylmaleimide I inhibited PKC activity. Telomerase activities appeared to be affected in a time-dependent manner by these two PKC inhibitors. PKC activities were increased in parallel with telomerase activity by TPA at the low dose (10 nM), but their activities were down-regulated at the high dose (1 micrometer). RT-PCR demonstrated the presence of hTR and hTERT mRNA before and after the treatment of PKC modulators, respectively, and showed the presence of one alternatively spliced transcript and full-length hTERT transcripts. CONCLUSION: These results showed that telomerase activity was affected by PKC and suggested PKC modulation may serve as an useful tool in the regulation of telomerase activity.
Alternative Splicing ; Cell Line* ; Humans* ; Ovarian Neoplasms* ; Protein Kinase C* ; Protein Kinases* ; RNA ; RNA, Messenger ; Telomerase* ; Tetradecanoylphorbol Acetate

Recently, the bcl-2 and p53 protein have been recognized as important factors that is contributed to programmed cell death. The objective of this study was to evaluate the prognostic significance of bcl-2 and p53 protein expression in uterine cervical carcinoma. The expression of bcl-2 and p53 in 59 cases of uterine cervical carcinoma (stage IB to IIB) were surgically treated from January 1993 to June 1994. The expression of bcl-2 and p53 was examined by immunohistochemical method using formalin fixed paraffin embedded tissue specimens. The 48 cases were squamous cell carcinoma and 11 cases were adenocarcinoma. The results were as follows: 1. The expression rate of bcl-2 protein was 28.8%(17/59) and there was no significant correlaltion between the expression of bcl-2 protein and the clinicopathologic parameters (histologic type, grade, FIGO stage, cervical invasion depth, lymph node metastasis, parametrial invasion, tumor size, neoadjuvant chemotherapy response, recurrence, survival). 2. The expression rate of p53 protein was 32.2%(19/59) and there was no significant correlation between expression of p53 protein and the clinicopathologic parameters. 3. There was significant correlation between and expression of bcl-2 and p53 protein (P 0.05). In conclusion, bcl-2 and p53 protein are thought to be possible factors in the carcinogenesis of uterine cervical carcinoma and correlate with progression of it. But further study will be required to clarify the role of bcl-2 and p53 in carcinogenesis of the uterine cervix.
Adenocarcinoma ; Carcinogenesis ; Carcinoma, Squamous Cell ; Cell Death ; Cervix Uteri ; Drug Therapy ; Female ; Formaldehyde ; Lymph Nodes ; Neoplasm Metastasis ; Paraffin ; Recurrence ; Uterine Cervical Neoplasms*

This study evaluated the effect of dagassing on the ceramic bond strength of two Ni-Cr alloys under varying holding time at the upper limit temperature and atmospheric conditions. Metal specimens were divided into 5 groups for each alloy according to degassing conditions prior to porcelain application : no degassing, degassing under vacuum without hold, degassing under vacuum with hold for 5min. and 10 min. respectively at the upper limit temperature and degassing in air. Total number of metal ceramic specimens was eighty and each group had eight specimens : The ceramic bond strength was measured by four-point flexural test using Instron and the fractured surface was examined under SEM. The results obtained were as follows. 1. Degassing in air improved the ceramic bond strength of Ni-Cr alloys. 2. in degassing under vacuum, hold at the upper limit temperature was advantageous to the ceramic bonding of Ni-Cr alloys. 3. After ceramic metal bond test, metal surfaces were partially covered with the thin porcelain layer, and the cohesive failures in porcelain were predominant in groups showing higher ceramic bond strength.
Alloys* ; Ceramics* ; Dental Porcelain ; Vacuum

No abstract available.
Hearing Loss, Sensorineural*

The various biomechanical responses such as stress distribution, facet contact force and nucleus pressure change in the lumbar spine under vertical static and dynamic loading conditions were. Investigated with a nonlinear three dimensional finite element model. Finite element model of one motion segment, consisted of two vertebral bodies(L3-4) with one disc, was developed from 1 mm thick transverse CT cross-sections. Geometrical nonlinearity was also considered for the large deformation on the disc. ABACUS package was used for calculation and its results were verified comparing with the existing in-vitro experimental data. Clinically useful results could be obtained with this analysis. Stress was concentrated on the endplate under static and dynamic loading condition, especially posterior and anterior aspect and central portion along midsagittal plane. The facet contact force showed some discontinuity when Δt/2=0.03 sec. This discontinuity was considered to de due to the vibration of upper vertebra. Relatively smooth contact force profile was detected when t/2=0.1342 sec. Intradiscal pressure and stress pattern changes on the vertebra were also analyzed.
Spine ; Vibration