1.Mechanical Reliability of the AMS 700CXM Inflatable Penile Prosthesis for the Treatment of Male Erectil Dysfunction.
Sung Wan CHO ; Young Deuk CHOI ; Hyung Ki CHOI
Korean Journal of Urology 2000;41(1):124-128
No abstract available.
Humans
;
Male*
;
Penile Prosthesis*
2.Mechanical Reliability of the AMS 700CXM Inflatable Penile Prosthesis for the Treatment of Male Erectil Dysfunction.
Sung Wan CHO ; Young Deuk CHOI ; Hyung Ki CHOI
Korean Journal of Urology 2000;41(1):124-128
No abstract available.
Humans
;
Male*
;
Penile Prosthesis*
3.Further Studies of Adenosine Deaminase in the Human Skin (II).
Chull Wan IHM ; Young Pio KIM ; Yoo Seop CHOI
Korean Journal of Dermatology 1983;21(1):71-75
Adenosine deaminase (adenosine aminohydrolase, E.C.3. 5. 4. 4; ADA), which catalyzes the deamination of adenosine to yield inosine and ammonia, was characterized in the human penile foreskin. ADA was found to be present in both layers of the skin with slightly higher activity in the epidermis(Epidermis; (7. 2+2. 3) * 10-4 unit/mg protein, Dermis;(5. 7 +1. 9) *10-4 unit/mg protein). The enzyme exhibited a broad pH optimum from 6. 5 to 8. 0 in both layers of the skin, and was heat-labile, being completely inactivated by heat treatment at 70C-75 C for 10 minutes. In contrast to the ADA of other tissue, the enzyme was inhibited by 2 mM of Cu2+, Fe2+ and Co2+ at pH7. 0 in both layers of the skin. The inhibitory effect of Cu2+ on the enzyme was stronger than other metal ions, and the enzyme was completely inactivated by 20 mM of Cu2+ in both layers. The Cu2+ inhibited enzyme activities which were recovered by adding EDTA. From the above results, it is suggested that the enzyme in both layers of the skin are consisted of same types of isozymes.
Adenosine Deaminase*
;
Adenosine*
;
Ammonia
;
Deamination
;
Edetic Acid
;
Foreskin
;
Hot Temperature
;
Humans*
;
Hydrogen-Ion Concentration
;
Inosine
;
Ions
;
Isoenzymes
;
Skin*
4.The value of tumor markers, TA-4 and CEA, in patients with recurrent squamous cell carcinoma of the uterine cervix.
Young Min CHOI ; Jin Wan PARK ; Wan Young KIM ; Chi Seok AHN ; Soon Beom KANG ; Hyo Pyo LEE
Korean Journal of Obstetrics and Gynecology 1991;34(3):369-375
No abstract available.
Carcinoma, Squamous Cell*
;
Cervix Uteri*
;
Female
;
Humans
;
Biomarkers, Tumor*
5.Endobronchial Inflammatory Pseudotumor: A case report.
Seoung Wan CHAE ; Young Hee CHOI ; Hye KYung AHN ; Young Euy PARK
Korean Journal of Pathology 1994;28(2):213-215
Inflammatory pseudotumors of the bronchus have been reported infrequently. Histologic diagnosis remains difficult because of their Polymorphic histologic characteristics and confusing terminology, which are also the problems in the diagnosis of intrapulmonary pseudotumors. We report a case of inflammatory pseudotumor in the left main bronchus which occurred in a 37-year-old man. Histologically, the main portion of the tumor was composed of pale eosinophilic spindle shaped cells covered by respiratory epithelium with squamous metaplasia. Mononuclear inflammatory cells, including plasma cells but acute inflammatory cells were also present in the superficial portion.
6.A Case Report of Strumal Carcinoid of the Ovary.
Young Hee CHOI ; Seoung Wan CHAE ; Hye Rim PARK ; Min Chul LEE ; Young Euy PARK
Korean Journal of Pathology 1994;28(3):307-312
Strumal carcinoid of the ovary is a rare turkor characterized by an intimate mixture of thyroid follicles and carcinoid. Herein is reported an ovarian strumal carcinoid in a serous cystadenoma from a 27-year-old pregnant woman. The thyroid follicular epithelial cells had immunohistochemically thyroglobulin and carcinoid tumor cells contained neuron-specific enolase, chromogranin and carcinoembryonic antigen. In addition, carcinoid cells showed neuroendocrine granules ultrastructurally. Calcitonin and amyloid were not found. This tumor may be originated from pluripotent endodermal germ cells on the basis of morphologic, immunohistochemical and ultrastructural studies.
Pregnancy
;
Female
;
Humans
7.Giant Cystic Adenomatoid Tumor of the Uterus: A case report.
Young Hee CHOI ; Seoung Wan CHAE ; Hye Kyung AHN ; Min Chul LEE ; Young Euy PARK
Korean Journal of Pathology 1993;27(1):85-87
Adenomatoid tumor of the uterus is a rare benign neoplasm which has been known as mesothelial origin. Characteristically, it appears as a small nodular lesion less than 2.0cm in the myometrium of subserosal region. We describe a case of giant adenomatoid tumor of the uterus having multicystic gross appearance. A 49-year-old woman complained of vaginal bleeding. The tumor was an intramural mass with maximum diameter of 10 cm and located at posterior wall of the uterus. Histologically, the tumor was composed of multiple cystic cavities of variable size lined by flattened cells, lying among thin septa of connective tissue. Immunohistochemically, the cells are positive for low molecular weight cytokeratin(CAM 5.2) and are negative for factor VIII.
Female
;
Humans
8.Clincial Study on Very Low Birth Weight Infants.
Sha Young CHOI ; Dae Young JANG ; Oh Kyung LEE ; Wan Seob KIM
Journal of the Korean Pediatric Society 1994;37(5):628-635
Medical records of very low birth weight infants weighing less than 1500 grams at birth were reviewed and analyzed. One hundred and forty three infants who were admitted to neonatal intensive care unit of Presbyterian Medical Center, including those who were born and transferred from other hospitals, from January 1987 to December 1991 were examined and the following results were obtained; 1) The incidence of very low birth weight infant was 1.21% 2) The most common maternal risk factor was premature labor and the next was toxemia. 3) The most common disease of very low birth weight infant was neonatal hyperbilirubinemia and the next was septicemia. 4) Twenty five infants (38.5%) of intensive care group and 67 infants (85.9%) of Not-ventilated group survived with overall survival rate of 64.6%. 5) The heavier birth weight and longer intrauterine period were factors offering better chance for survival. 6) Among 43 (30%) infants expired, 7 (16.3%) died within 24 hours after birth, 12 (27.9%) died in second or third day, 4 (9.3%) died between fourth and seventh day, and 20 (46.5%) died between eighth.and twenty eighth day.
Birth Weight
;
Female
;
Humans
;
Hyperbilirubinemia, Neonatal
;
Incidence
;
Infant*
;
Infant, Newborn
;
Infant, Very Low Birth Weight*
;
Critical Care
;
Intensive Care, Neonatal
;
Medical Records
;
Obstetric Labor, Premature
;
Parturition
;
Pregnancy
;
Protestantism
;
Risk Factors
;
Sepsis
;
Survival Rate
;
Toxemia
9.Clinical Significance of the Transcutaneous Bilirubinometry as Screening Test for Prediction of the Early Neonatal Jaundice.
Jong Wan KIM ; Young Hwan CHOI ; Jae Kook CHA ; Ki Yang RYOO
Korean Journal of Perinatology 1999;10(1):30-39
The authors evaluated the clinical significance of the bilirubin values as screening test means for predicting the occurrence of neonatal jaundice earlier after birth, by using the transcutaneous bilirubinometry which is known to measure the bilirubin values in a noninvasive, accurate and simple way. The results obtained were as follows: 1. In comparison between the test group(showing the symptom of a jaundice within 72 hours after birth) and the control group, there were found no statistically significant differences in terms of sex, delivery type, birth weight, gestational age and mother's age, while being found statistically significant differences in terms of transcutaneous bilirubin at birth(TcBbirth), transcutaneous bilirubin at 24 hours after birth(TcB24hr), increase in transcutaneous bilirubin per hour during the first 24 hours after birth(TcBin/hr) and transcutaneous bilirubin at 72 hours after birth(TcB72hr)(p<0,05). 2. The correlation test using the Pearson's coefficient produced statistically significant correlationship between each transcutaneous bilirubin index (TcBbirth, TcB24hr, TcBin/hr and TcB72hr) and serum bilirubin concentration at 72 hours after birth(B72hr)(p<0.05), while the result of the correlation test using the Spearman's roh showed statistically significant correlationship only between TcB24hr or TcB72hr and B72hr(p<0.05). As it was, the correlationship between TcB72hr and B72hr was highest in both Pearsons coefficient and Spearman's roh tests, followed by that between TcB24hr and B72hr. 3. In view of the ROC graph, the most effective means of predicting the occurrence of the neonatal jaundice was TcB72hr followed by TcB24hr, TcBbirth and TcBin/hr in their order. In particular, TcB24hr was conceived to be useful as screening test for determining an early discharge from the nursery within 48 hours. On the other hand, since the negative predictive value of TcBbirth, and TcB24hr is higher, the possibility that those infants showing a lower value of these indices may well be free later from a serious neonatal jaundice even if they should be discharged earlier from the nursery. In conclusion, those four indices predicting the neonatal jaundice in a simple, quick and noninvasive manner using the transcutaneous bilirubinometry were considered to be effective screening test means whereby any serious neonatal jaundice developed earlier after delivery can be successfully predicted.
Bilirubin
;
Birth Weight
;
Gestational Age
;
Hand
;
Humans
;
Infant
;
Infant, Newborn
;
Jaundice
;
Jaundice, Neonatal*
;
Mass Screening*
;
Nurseries
;
Parturition
10.Treatment with EMA-CO regimen in the management of high risk gestational trophoblastic tumor.
Young Min CHOI ; Jin Wan PARK ; Do Yeong HWANG ; Soon Beom KANG ; Hyo Pyo LEE
Korean Journal of Obstetrics and Gynecology 1991;34(1):91-100
No abstract available.
Trophoblastic Neoplasms*
;
Trophoblasts*