This studly was perormed 10 define the role of compulerized quantitative analysis in ewalualion for overexpression of p53 by immunohistochemistry. Total and ladeled cells wers counted automatically using commercially available software for color-image analysis. In 16 uterine cerwical carcinomas, the p53 ladeling index calculted bycomputerized5quantitatiwe analysis was 9.22%+/-8.70% and by visual analysis 5.90+/-6.51%. The present results suggest that the computerized quantitative analysis may be valuadle in objective interetation of immunohistochemical expression of p53 and reliable than conventional ways of visual analysis.
Cervix Uteri* ; Female ; Immunohistochemistry

Lectin is a non-immunological glycoprotein and binds specifically to carbohydrate terminals in tissue. Lectin histochemistry using 10 different biotinylated lectins was performed to investigate the effects on thirty-two pigmented rabbit retinas during wound healing. The results are as follows: 1) In normal retina. a) WGA, RCA I, and LCA were bound to the internal limiting membrane. b) WGA, RCA I, LCA, and PNA were bound to the photoreceptor layer. c) WGA, RCA I, LCA, SJA, ConA and BSL I were bound to the basal side of retinal pigment epithelium. d) PNA was bound to cone cell only. e) SBA, DBA, and UEA I didn't bind to any layers of retina. 2) In photocoagulated wound. One day after photocoagulation WGA, LCA and RCA I began to show increased reaction. At 3 and 5 days these lectins sustained reactivity. At 7 days increased reactivity began to decrease or disappear from wound. Macrophages had positive reaction to BSL I, WGA, LCA, and RCA I. In conclusion these results indicate that a-mannose, a glucose, a, beta-galactose, N-acetylglucosamine, and N-acetylneuramic acid are present in glycoconjugates of normal rabbit neural retina. It seems that some glycoconjugates may be related to vitreoretinal, retinal and chorioretinal adhesion in normnal retinal, and after argon laser photocoagulation. WGA-binding, LCA-binding and RCA I-binding glycoconjugates may play a part in cell adhesion during early wound healing.
Argon* ; Cell Adhesion ; Glucose ; Glycoconjugates* ; Glycoproteins ; Lectins ; Light Coagulation* ; Macrophages ; Membranes ; Retina* ; Retinal Pigment Epithelium ; Retinaldehyde ; Wound Healing* ; Wounds and Injuries*

The origin of osteoclast-like giant cell tumor (OGCT) of the salivary gland has been debated because the prototypic cells of osteoclast-like cells and mononuclear stromal cells are largely unexplained in this gland. Bone marrow-derived CD14+ and CD45+ monocyte-derived multipotential cells (CD14+/CD45+ MOMC) may be one of the possible origins of OGCTs of salivary glands, which have never been explored in salivary OGCTs. We present a case of OGCT accompanied with carcinoma ex pleomorphic adenoma in the parotid gland of a 67-year-old Korean female. The tumor presented as a rapidly growing cervical mass comprising a central area of carcinoma ex pleomorphic adenoma and a peripheral circumferential area of OGCT. The immunohistochemical staining pattern was phenotypically consistent with bone marrow-derived CD14+/CD45+ MOMC. This case is the first report of a salivary OGCT in Korea.
Adenoma, Pleomorphic ; Aged ; Cytosine ; Female ; Giant Cell Tumors ; Giant Cells ; Humans ; Korea ; Mixed Tumor, Malignant ; Monocytes ; Osteoclasts ; Parotid Gland ; Salivary Glands ; Stromal Cells

The origin of osteoclast-like giant cell tumor (OGCT) of the salivary gland has been debated because the prototypic cells of osteoclast-like cells and mononuclear stromal cells are largely unexplained in this gland. Bone marrow-derived CD14+ and CD45+ monocyte-derived multipotential cells (CD14+/CD45+ MOMC) may be one of the possible origins of OGCTs of salivary glands, which have never been explored in salivary OGCTs. We present a case of OGCT accompanied with carcinoma ex pleomorphic adenoma in the parotid gland of a 67-year-old Korean female. The tumor presented as a rapidly growing cervical mass comprising a central area of carcinoma ex pleomorphic adenoma and a peripheral circumferential area of OGCT. The immunohistochemical staining pattern was phenotypically consistent with bone marrow-derived CD14+/CD45+ MOMC. This case is the first report of a salivary OGCT in Korea.
Adenoma, Pleomorphic ; Aged ; Cytosine ; Female ; Giant Cell Tumors ; Giant Cells ; Humans ; Korea ; Mixed Tumor, Malignant ; Monocytes ; Osteoclasts ; Parotid Gland ; Salivary Glands ; Stromal Cells

No abstract available.
Catheters* ; Dilatation* ; Esophageal Stenosis*

Since Folkman's novel hypothesis, it is well known that tumors depend on the angiogenesis for their growth, expansion, and possibly metastasis. Several angiogenic factors have been identified and shown to be produced by tumors. In some cancers, the angoigenic activity in the tumor is correlated with the clinical outcome. Clinically, the presence of macroscopic or colposcopic abnormal vascular patterns of the uterine cervical lesions would suggest that the angiogenic activities are associated with various cervical squamous epithelial lesions. This study was designed to look at the relationship between angiogenesis and squamous epithelial lesions of the uterine cervix and to determine whether squamous intraepithelial lesions are angiogenic as cervical cancers are. Tissue sections from 53 surgical specimens(6 normal cervix, 4 chronic cervictis, 9 low grade SII, 8 high grade SIL, 7 MIC, 19 squamous cell carcinoma) were immunohistochemically stained for CD 34 a specific marker for endothelial cels. Stained vessels in the most intense area on a X200 light microscopic field were selected and counted automatically using computer software for color-image analysis. Stained vessel counts were 19.7 +/- 9.1 in normal cervix, 33.5 +/-5.8 in chronic cervicitis, 38.8 +/- 10.9 in LGSIL, 67.0 +/- 23.6 in HGSIL, and 73.4 +/- 20.6 in microinvasive carcinoma, 77.8 +/- 28.7 in squamous cell carcinoma, respectively. Vessel counts showed a statistically increasing tendency in more advanced squamous epithelial lesins. Tumor angiogenesis is not related to inflammatory response. Also, the process of the angiogenic switching may begin from low grade SIL to high grade SIL. This study suggests that the angiogenic activity also involved in SILs as invasive cancer are and may be related to grade of SELs.
Angiogenesis Inducing Agents ; Carcinoma, Squamous Cell ; Cervix Uteri* ; Female ; Neoplasm Metastasis ; Uterine Cervicitis

Holoprosencephaly is a rare CNS developmental defect with midline cleavage of embryonal forebrain during the fourth week of fetal development characterized with s single ventricle. Holoprosencephaly is divided into three types by the degree of the brain cleavage : alobar, semilobar, and lobar. Depending on the degree of defected regions, there exist variable clinical symptoms and signs such as stillbirth, hypotonia, apnea, convulsion, delayed development and visual disturbance. It was frequently associated with the deformity of the brain as well as the midline facial structures. Advances in neuroimaging over the past decades have led us to a better understanding of the pathogenesis and the variability of holoprosencephaly. As a result, a lot of cases of holoprosencephaly with various clinical and pathologic findings have been reported. We experienced a case of isolated interhemisphere fusion of frontal lobes with intact septum pellucidum in a child with febrile status epilepticus. Is it a variant of holoprosencephaly?
Apnea ; Brain ; Child ; Congenital Abnormalities ; Fetal Development ; Frontal Lobe* ; Holoprosencephaly* ; Humans ; Muscle Hypotonia ; Neuroimaging ; Prosencephalon ; Seizures ; Septum Pellucidum* ; Status Epilepticus ; Stillbirth

Under the specific circumstances the appendix may be an appropriate organ for plastic repair of a large ureteral defect. We report a case of antireflux surgery using an appendiceal pedicle graft in recurrent right vesicoureteral reflux after augmentation gastrocystoplasty and uretera1 reimplantation. This graft was successfully replaced the right lower ureter to repair long defect caused by postoperative adhesion and follow up urogram showed disappearance of reflux and improvement of hydronephrosis at three months postoperatively.
Appendix ; Follow-Up Studies ; Hydronephrosis ; Plastics ; Replantation ; Transplants* ; Ureter ; Vesico-Ureteral Reflux*

A 51-year-old male was admitted three month previously with a cardiac stab injury and he underwent direct cardiac repair. He had no problem after this event. He complained of dyspnea that started 2 months after the original injury. Echocardiography showed severe tricuspid regurgitation and so, chordac replacement and ring annuloplasty was performed. Herein we report on a case of tricuspid valve repair for treating tricuspid insufficiency following a cardiac stab injury.
Dyspnea ; Echocardiography ; Humans ; Male ; Middle Aged ; Tricuspid Valve Insufficiency* ; Tricuspid Valve* ; Wounds, Stab

BACKGROUND: Hypoxic pulmonary vasoconstriction (HPV) is unique to pulmonary circulation but the mechanism remains elusive. Red blood cells (RBCs) are known to augment HPV and to release more ATP as oxygen content falls. Leukotrienes constrict smooth muscle and could be important for the regulation of the pulmonary circulation. Hence we hypothesized that ATP and leukotrienes are mediators of HPV produced during acute alveolar hypoxia. METHODS: In forty Sprague-Dawley rats, lungs were isolated and perfused. We administered ATP (10 micrometer) to the ATP group (n = 8), the ATP antagonist, suramin (100 micrometer) to the suramin group (n = 8), leukotriene C4 (LTC4, 5 microgram) to the LTC4 group (n = 8), the LTC4 antagonist, LY171883 (20 micrometer) to the LY171883 group (n = 8), and LTC4 (5 microgram) + ATP (10 micrometer) to the LTC4 + ATP group (n = 8) during normoxic ventilation. HPV responses were induced by three hypoxic challenges for 5 minutes separated by 5 minutes of ventilation with a normoxic gas mixture. Baseline pulmonary artery pressure change after exposure to each drug and hypoxic pressor response between a period 21% normoxic gas ventilation and that of 3% hypoxic gas ventilation were measured. RESULTS: ATP and LTC4 + ATP increased baseline pulmonary artery pressures but LTC4 did not alter it. ATP did not affect hypoxic pressor response. Suramin, LY171883 and LTC4 + ATP inhibited the pressor response to hypoxia. LTC4 increased hypoxic pressor response. CONCLUSIONS: In isolated rat lungs, HPV may be mediated by ATP and LTC4 appears more likely to be a modulator than a mediator of HPV.
Acetophenones ; Adenosine Triphosphate ; Animals ; Anoxia ; Erythrocytes ; Leukotriene C4 ; Leukotrienes ; Lung ; Muscle, Smooth ; Oxygen ; Pulmonary Artery ; Pulmonary Circulation ; Rats ; Rats, Sprague-Dawley ; Suramin ; Tetrazoles ; Vasoconstriction ; Ventilation