1.A Case of Cystic Pancreatoblastoma Associated with Congenital Hemihypertrophy.
Hyun Joo LEE ; Kyuong Ha YOO ; Young Mi HONG ; Kyuong Hee KIM ; Kum Ja CHOI ; Joung Hyun YOO ; Sung Sook KIM
Journal of the Korean Pediatric Society 1996;39(6):861-865
We experenced a case of cystic pancreatoblastoma associated with congenital hemihypertrophy in a 4 months old male. The mass was located on the anterior side of pancreatic head without any connection to the pancreas. After exision of cystic pancreatoblastoma, chemotherapy(FAM regimen) was performed 15 times due to capsular tumor invasion. Until this time there was no drug side effect and metastasis. The patient's general condition is stable.
Head
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Humans
;
Infant
;
Male
;
Neoplasm Metastasis
;
Pancreas
2.Changes of Renal Function and Treatment after CABG in Patients with Elevated Serum Creatinine.
Sam Youn LEE ; Jong Bum CHOI ; Mi Kyuong LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2005;38(2):146-151
BACKGROUND: Preoperative elevated serum creatinine values are associated with increased risk for both morbidity and mortality in patients undergoing on-pump coronary artery bypass surgery (CABG). We investigated the postoperative changes of renal function and proper management in the patients. MATERIAL AND METHOD: Among 74 consecutive patients who underwent isolated on-pump CABG, 17 patients with increased serum creatinine level (creatinine > or = 1.5 mg/dL) within preoperative one week were included in the study. Seven patients showed preoperative serum creatinine level of 2.0 mg/dL or higher, and 3 of them had been undergoing hemodialysis. Preoperative hemodialysis was performed in the 3 patients due to end-stage renal failure (ESRD) the day before the operation. We started peritoneal dialysis immediately after the cardiopulmonary bypass in patients with ESRD or postoperative acute renal failure if it was necessary to remove intravascular volume and lower serum creatinine level. RESULT: In most of the patients with CABG, postoperative serum creatinine level increased and recovered to the preoperative level at the discharge. In 2 of the 4 patients with serum creatinine level of 2.0 mg/dL or higher and 3 patients with ESRD, intravascular volume, serum creatinine level and serum electrolyte were controlled with peritoneal dialysis. CONCLUSION: Postoperative serum creatinine level increased transiently in most of CABG patients, and intravascular volume and serum creatinine level were controlled by peritoneal dialysis only in the patients with acute renal failure postoperatively and those depending on hemodialysis.
Acute Kidney Injury
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Cardiopulmonary Bypass
;
Coronary Artery Bypass
;
Creatinine*
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Humans
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Kidney Failure, Chronic
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Mortality
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Peritoneal Dialysis
;
Renal Dialysis
;
Renal Insufficiency
3.Rapid Loss of Apurinic/Apyrimidinic Endonuclease and Subsequent Apoptosis in Kainate-Induced Seizure Model.
Ha Young SHIN ; Doo Jae LEE ; Kyuong Joo CHO ; Mi Ae KIM ; Yong Hyun LEE ; Kyoung HEO ; Gyung Whan KIM ; Byung In LEE
Journal of Korean Epilepsy Society 2004;8(2):108-115
PURPOSE: The DNA repair enzyme, apurinic/apyrimidinic endonuclease (APE) plays a role in base excision repair pathway involved in repairing apurinic/apyrimidinic (AP) site after oxidative stress. To reveal the relationship between APE and neuronal apoptosis associated with oxidative stress after kainate treatment, the temporal change of APE expression was investigated in kainate-induced seizure model. METHODS: Status epilepticus was induced by unilateral intrahippocampal injection of kainate. Superoxide anion radical production and DNA oxidation were evaluated by in situ detection of oxidized hydroethidine and 8-hydroxyguanine (8-OHG) immunore activity. APE expression was examined by Western blot and immunohistochemical analysis. DNA fragmentation was visualized with terminal deoxynucleotidyl transferase-mediated uridine 5'-triphosphate-biotin nick end labeling (TUNEL) staining. RESULTS: Cell loss occurred at 24 hr in CA1, CA2, and CA3 after kainate-injection. 8-OHG immunoreactivity and oxidized hydroethidine were increased comparing with control after kainate-injection. APE immunoreactivity was decreased 4 and 24 hours in the hippocampus after kainate-injection. TUNEL-positive cells were observed 24 hours but not 4 hours in hippocampus after kainate-injection. In double labeling with APE and TUNEL, TUNEL-positive cells did not show APE immunoreactivity. These data showed that cellular oxidative stress was increased, thereby APE was decreased in the hippocampus after kainate-injection. Also, it was shown that the reduction of APE preceded DNA fragmentation. CONCLUSION: This study suggests that rapid loss of APE may produce the failure of DNA repair-machinary and then induce neuronal apoptosis following kainate-injection.
Apoptosis*
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Blotting, Western
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DNA
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DNA Fragmentation
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DNA Repair
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Epilepsy
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Hippocampus
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Hominidae
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Humans
;
In Situ Nick-End Labeling
;
Kainic Acid
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Neurons
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Oxidative Stress
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Seizures*
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Status Epilepticus
;
Superoxides
;
Uridine
4.Identification of Gene Expression and Gene Ontology Classification by Differential Display RT-PCR in Human Cervical Squamous Cell Carcinoma.
Min Je SEO ; Su Mi BAE ; Kyoung Mi PARK ; Byung Hoon KIM ; Yong Wan KIM ; Kyuong Yun SEO ; Kyung A SEO ; Yong Wook KIM ; Soo Young HUR ; Duck Young RO ; Joon Mo LEE ; Sung Eun NAMKOONG ; Chong Kook KIM ; Woong Shick AHN
Korean Journal of Obstetrics and Gynecology 2004;47(4):684-694
OBJECTIVE: The molecular pathology of cervical cancer associated with human papillomavirus infection is presently unclear. In an effort to clarify the multiple interactions of a number of genes involved in cervical carcinogenesis, the gene expression profiles and pathogenic cellular processes between human cervical squamous cell carcinoma and normal cervix were investigated by mRNA differential display and the Gene Ontology analysis. METHODS: Cervical cancer biopsies were obtained from patients at the Department of Obstetrics and Gynecology, The Catholic University of Korea. The disease status was assigned according to the International Federation of Gynecology and Obstetrics. The squamous cell carcinoma tissue samples of 3 patients invasive cancer stage II (1), IV (2) were investigated by mRNA differential display. As a control, we used a common reference that was mixed with equal amount of RNA obtained from 17 normal cervix to obtain variation- independent control. Also, we constructed hierarchical functional structures using gene ontology. Then, the specific function groups were correlated with differential gene expression profiles. In addition, specific gene expression patterns in several tissue samples were investigated by using DDRT-PCR analysis. RESULTS: Differentially expressed 191 genes were identified in tumor samples. Of these genes, 128 were up-regulated and 63 were down-regulated above 1.5-fold. The gene expression profiles were classified into 46 mutually dependent function sets and organized into sub-function sets depending on the cervical cancer pathway, suggesting the potentially significant genes of unknown function affected by carcinogenesis pathway. The genes related to metabolism, signal transduction, and chaperon activity were significantly up-regulated. In contrast, significant down-regulations were shown in nucleic acid binding activity, tumor suppressor and structural activity. Reliable gene expression data shows the validation of profiling method for studying the cervical cancer-specific pathway. CONCLUSION: The specific functions assigned to each expressed gene were correlated with gene ontology for the establishment of a powerful cervical carcinogenesis pathway. The results suggest that the differentially regulated cellular process profiles have an important impact on discovery of pathogenic pathway in human cervical squamous cell carcinoma and provide the potentially significant genes of unknown function. Also, the gene ontology analysis can overcome the complexity of the expression profiles of mRNA differential display via a cellular process level approach. Thereby, a valuable prognostic candidate gene with real relevance to disease-specific pathogenesis can be found at the cellular process levels.
Biopsy
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Carcinogenesis
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Carcinoma, Squamous Cell*
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Cervix Uteri
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Classification*
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Female
;
Gene Expression Profiling
;
Gene Expression*
;
Gene Ontology*
;
Gynecology
;
Humans*
;
Korea
;
Metabolism
;
Obstetrics
;
Papillomavirus Infections
;
Pathology, Molecular
;
RNA
;
Signal Transduction
;
Transcriptome
;
Uterine Cervical Neoplasms