1.Autoradiographic studies on the uptake of C(14)-succinic acid by Clonorchis sinensis.
The Korean Journal of Parasitology 1971;9(1):17-24
The distribution of exogenous C(14)-succinic acid by Clonorchis sinensis incubated in Tyrode medium was studied by using autoradiographic techniques. A comparison was made between macro and microautoradiographs of this worm showed that black grains derived from labeled substance were distinctly observed in parenchymal tissue, oral sucker, ventral sucker, ovary, testes, and uterine tubules with eggs. In pharynx and intestine, a low density was monitored while negligible activity was found in seminal receptacle and vitelline follicles. In studying the further details, microautoradiography was utilized. The most radioactive regions were the reticular tissue and subcuticular musculature of this fluke, closely compatible with the finding of macroautoradiography. Apparent black grains of radioactivity were also found in oral sucker, ventral sucker, pharynx, uterine tubules, eggs in uterus, and intestinal ceca. Structures showing the least radioactivity included ovary, seminal receptacle and vitelline folliciles.
parasitology-helminth-trematoda
;
Clonorchis sinensis
;
Tyrode
;
autoradiography
;
biochemistry-succinic acid
;
Tyrode
;
succinic acid
2.Clinical Features and Histopathological Characteristics of Nevus Depigmentosus.
Han Seung LEE ; Soo Min KIM ; Seung Kyung HANN
Korean Journal of Dermatology 1998;36(1):86-94
BACKGROUND: Nevus depigmentosus was first reported in 1884 by Lesser. It is defined as a congenital non-progressive hypopigmented macule or patch that is stable in its relative size and distribution throughout the life of the individual. The etiopathogenesis and histopathological characteristics of nevus depigmentosus are not fully established. OBJECT: The purpose of this study is to investigate the clinical and histopathological characteristics and pathogenesis of nevus depigmentosus. METHODS: Clinieal survey was carried out on forty-nine patients with nevus depigmentosus and two skin biopsies were taken from eighteen patients; from the central part of the depigmented lesion and the border of the lesion including the perilesional normal skin. The sections were stained with hematoxylin-eosin, Fontana-Masson and S-100 protein. The ultrastructural evaluation were also done to detect alternation of melanocytes. RESULTS: The results are as follows ; 1. The lesions were mostly (91.8%) present before the age of three, but some lesions appeared in childhood (8.2%). 2. The lesions were most frequently found on the trunk (42.9%), followed by the face and scalp (20.4%). 3. There were 33 patients (67.3%) with the isolated type, 15 patients (30.6%) with the dermatomal type and one patient with the whorled type. 4. Histopathological studies have shown that the stainability of Fontana-Masson in the lesions of nevus depigmentosus was decreased compared with perilesional nomal skin, but there were no changes in the number of melanocytes. 5. There was a great reduction in the number of melanosomes in melanocytes and keratinocytes of nevus depigmentosus. In keratinocytes, there was some aggregations of melanosomes and some of them showed membrane bound architecture. CONCLUSION: The results of this study support the fact that nevus depigmentosus is caused by functional defects of melanocytes and morphological abnonnalities of melanosomes.
Biopsy
;
Humans
;
Keratinocytes
;
Melanocytes
;
Melanosomes
;
Membranes
;
Nevus*
;
S100 Proteins
;
Scalp
;
Skin
3.Comparison of Techniques for Correcting the Prominent Ear in Rabbits.
Jin Soo KO ; Seung Han KIM ; Seung Hong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(5):1035-1039
The relative merits of cartilage scoring versus suturing in techniques for correcting the prominent ear remains a subject of debate among leading plastic surgeons. We compared a variety of echniques for correcting the prominent ear in 72 rabbit ears using scoring, horizontal mattress sutures, and combination scoring and suturing. The ears were splinted with a right-angle fold for 3 postoperative weeks, and the animals were sacrificed after 8 weeks. Suturing techniques in combination with scoring maintained an angulation significantly closer to the desired 90 degrees than cartilage scoring or cartilage suturing only(p<0.05). Histological analysis demonstrated a significant increase in cartilage hyperplasia by suturing alone, whereas the other techniques achieved only mild to moderate increases. We recommend cartilage scoring and suturing through skin incision on severe degrees of prominent ear, and cartilage needle scoring and buried suturing through slit incision on mile-to-moderate degrees of prominent ear.
Animals
;
Cartilage
;
Ear*
;
Hyperplasia
;
Needles
;
Rabbits*
;
Skin
;
Splints
;
Sutures
4.US and CT Findings of Small Renal Cell Carcinoma.
Man Chung HAN ; Seung Hyup KIM ; Cheol Soo SEO
Journal of the Korean Radiological Society 1995;32(3):491-496
PURPOSE: To evaluate US and CT characteristics of small renal cell carcinomas with diameter less than 3cm. MATERIALS AND METHODS: We retrospectively analysed US and CT findings of the small renal cell carcinomas which were surgically confirmed. We analysed echogenicity, peritumoral hypoechoic rim, intratumoral cysts on US. We analysed CT with viewpoints of tumor margin, growth pattern, renal contour change, attenuation on pre- and postcontrast scan, homogeneity, and perirenal changes. RESULTS: The US characteristics of the small renal cell carcinomas were hyperechogenicity(89%), peritumoral hypoechoic rim(66%) and intratumoral cysts(44%). They had relatively well-defined margin(90%), smooth and round contour(90%), endophytic growth pattern(65%), and outward bulging of renal contour(75%) on CT. They had iso- or high attenuation(87%) on precontrast CT, and were relatively homogeneous low-attenuated on postcontrast CT. CONCLUSION: The constellation of US and CT findings may be helpful in the diagnosis and understanding of the internal architecture of the small renal cell carcinomas.
Carcinoma, Renal Cell*
;
Diagnosis
;
Retrospective Studies
6.REPAIR OF NERVE DEFECTS WITH EXPANSION TECHNIQUE: HISTOMORPHOMETRIC STUDY ON NERVE REGENERATION.
Cheol Kyu KIM ; Seung Han KIM ; Seung Hong KIM ; Jin Soo KIM ; Mee Kyung KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(5):908-916
No abstract available.
Nerve Regeneration*
7.Cervical Esophageal Impaction by Unsuspected Food Materials.
Ji Hye KIM ; Seung Soo KIM ; Kil Hong LEE ; Xue Ji HAN ; Seung Ok LEE
Korean Journal of Gastrointestinal Endoscopy 2002;24(3):152-155
A 68-year-old man was refered for evaluation and treatment of advanced esophageal cancer. He complained of substernal dysphagia for solid and liquid foods. He did not remember episodes about ingesting something that correlated with symptoms. The single-contrast esophagogram revealed subtotal obstruction of the cervical esophagus with barium outlining the polypoid-filling defect irregularly. After 18 hours later, the patient underwent endoscopic examination and at the direct esophagoscopic finding, the food materials mainly consisted of packed rice was filled in the cervical esophagus. After saline irrigation, a fish bone, which was about 50X9 mm, and looked like a knife was lodged just distal to the impacted food materials. The fish bone was removed successfully from the esophagus. The patient experienced dramatic relief of symptoms shortly after procedure.
Aged
;
Barium
;
Deglutition Disorders
;
Esophageal Neoplasms
;
Esophagus
;
Humans
8.Percutaneous Transluminal Coronary Angioplasty in Total Coronary Artery Occlusion.
Won Heum SHIM ; Han Soo KIM ; Yang Soo JANG ; Seung Yun CHO ; Woong Ku LEE
Korean Circulation Journal 1992;22(4):532-539
BACKGROUND: Improvements in catheter equipments and increasing experience of the operators have brought about a broadening of the indications and applications of percutaneous transluminal coronary angioplasty(PTCA). In particular, coronary angioplasty has been employed in total occlusions.We evaluated the initial success rate and safety of PTCA total occulsive coronary artery disease. METHODS: To assess the success rate and safety of PTCA total coronary artery occlusion, the data of 24 patients(male 19, female 5, mean age 55+/-9 years), in whom PTCA for total occlusion were performed, were examined. RESULTS: Primary success rate of procedure was 66.7%(16 out of 24 lesions).The success rate according to the duration of total occlusions was 8 out of 11(72.7%) with occlusions<4 weeks duration and 3 out of 7(42.9%) with occlusions>4 weeks duration(p=0.07). There was no difference in success rate according to vassel dilate(left anterior descending 75.0%, right coronary 44.4%) and length of occluded lesion(0.93%+/-0.47%cm, p=0.35). Eight procedural failures included inability to cross the lesion with a guide wire in 6 and inability to dilate the lesion in 2, but there was no emergency coronary bypass surgery or cardiac death. CONCLUSION: Even though the recanalization of occluded coronary arteries has a lower initial success rate than angioplasty for stenotic arteries, PTCA in total occlusion can be performed as a safe and effective therapeutic modality in selective patients.
Angioplasty
;
Angioplasty, Balloon, Coronary*
;
Arteries
;
Catheters
;
Coronary Artery Disease
;
Coronary Vessels*
;
Death
;
Emergencies
;
Female
;
Humans
9.Early Results of Percutaneous Coronary Angioplasty in Multiple Lesions and Vessels.
Han Soo KIM ; Won Heum SHIM ; Yang Soo JANG ; Seung Yun CHO ; Woong Ku LEE
Korean Circulation Journal 1992;22(4):524-531
BACKGROUND: Indications and applications of percutaneous transluminal coronary angioplasty(PTCA) have been broaden recent years. We evaluated the initial success rate and safety of PTCA in mulitiple lesions and vessels. METHODS: To assess the success rate and safety of PTCA In mulitiple lesions and vessels, the data of 60 lesions from 28 patients(male 23, female 5, mean age 56+/-12 years), in whom PTCA for multiple lesions and vessels were performed, were examined. Initial results and complications were compared in 37 lesions undergoing multivessel and 23 lesions undergoing multilesion PTCA. RESULTS: Overall primary success rate of procedure was 82%(49 out of 60 lesions). Angioplasty was attempted in mean 2.1 stenotic lesions per patient. Primary success rate per lesion was 84%(31 of 37) among those who underwent multivessel and 78%(18 of 23) among those who underwent multilesion PTCA(p>0.05). Success rate according to the combination of dilated vessels was 85.7%(12 of 14) in left anterior descending(LAD) and left circumflex(LCX), 83.3%(10 of 12) in LAD and right coronary artery(RCA), 100.0%(4 of 4) in LAD and diagonal branch, RCA and LCX in 75.0%(3 of 4), and 66.7%(2 of 3) in LAD, LCX and diagonal branch. Eleven failures(18.3%) included inability to pass the guide wire cross the lesion or inability to locate the balloon catheter in 5(8,3%), abrupt closure in 2(3,3%), coronary spasm in 1(1.7%) and major branch occlusion in 3(5.0%), but there was no emergency coronary bypass surgery or cardiac death. CONCLUSION: Coronary angioplasty in selected patients with multivessel and multilesion coronary artery disease might be useful and have relatively good initial results, but the long-term efficacies with other forms of treatment must be evaluated prospectively.
Angioplasty*
;
Catheters
;
Coronary Artery Disease
;
Death
;
Emergencies
;
Female
;
Humans
;
Spasm
10.A Comparison of Korean Traditional Child-rearing Practices between Generations of Young Mothers and Grandmothers.
Seung Hee HAN ; In Soo KWON ; Soo Yeon LEE
Korean Journal of Child Health Nursing 2006;12(1):65-74
PURPOSE: The purpose of this study was to investigate differences in Korean child-rearing practices between the generations of young mothers and grandmothers. METHOD: The participants were 98 mothers who were 20 to 39 years old and had raised one-year-old child and 103 grandmothers who were over 60 years old and had raised their children in a small city. Data were collected through self-report questionnaire based on the Korean traditional child-rearing practice from Yoo(1986). The data were analyzed using the SPSS Win 10.0 program. RESULTS: Of 37 items in the categories of feeding and weaning, health management and taboo matters, play, and baby celebrations, the grandmothers practiced 13 items (35%) more frequently than the young mothers. However, no generation differences were found in 21 items (57%), and 3 items were practiced more frequently by the young mothers. For the young mothers, there were 15 items (41%) which were practiced over 70%, 7 items (19%) which were practiced less than 30%. CONCLUSION: It seems that some Korean traditional child-rearing practices were transferred to modern child-rearing practices. Therefore pediatric nurses need to pay attention to traditional child-rearing practices for the best health, growth and development of children.
Adult
;
Child
;
Family Characteristics*
;
Growth and Development
;
Humans
;
Middle Aged
;
Mothers*
;
Taboo
;
Weaning
;
Child Health
;
Surveys and Questionnaires