1.Surgical Experiences of Three Cases of Giant Pituitary Adenoma.
Hyun Won CHO ; Han Kyu KIM ; Yong Soon HWANG ; Tae Sang CHUN ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1990;19(8-9):1221-1230
Three cases of giant pituitray adenoma are reported. Two cases were operated by transsphenoidal approach and a case by transcranial approach. Transsphenoidal approach showed satisfactory results despite of marked suprasellar extension of tumors. We report rare giant pituitary adenomas with review of relevant literatures.
Adenoma
;
Pituitary Neoplasms*
2.Serum and Urine Zinc Values in Infectious Diseases.
Yong Tai SUH ; Hwa Young KIM ; Jai Sook MAH ; Tai Ju HWANG
Journal of the Korean Pediatric Society 1984;27(3):237-245
No abstract available.
Communicable Diseases*
;
Zinc*
3.Steroid Psychosis.
Jae Gon MOON ; Jin Hak KIM ; Yong Soon HWANG ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1994;23(7):809-815
The use of steroids has long been reported many side effects. Steroid-induced mental disorder is one of many complications associated with corticosteroid therapy. Steroid psychosis is not common disease but it may be more popular due to high steroid therapy such as pulse therapy or high dose steroid therapy. Euphoria, irritability, insomnia, and hallucination are predominating symptoms. The dosage, duration of the treatment may not be correlated with the time of the onset, duration, severity, or type of mental disturbances, but the risk of developing psychosis is increased to the high dose of steroid. It is usually reversible on dose reduction or discontinuation of the drug.
Euphoria
;
Hallucinations
;
Mental Disorders
;
Psychotic Disorders*
;
Sleep Initiation and Maintenance Disorders
;
Steroids
4.Two cases of primary ovarian transitional cell carcinoma.
Yuan Fung SUN ; Young Woo JANG ; Yong Hwa HWANG ; Sueng Kwon KOH ; Sook CHO ; Byung Moon KANG ; Goo Sang KIM
Korean Journal of Obstetrics and Gynecology 1993;36(7):1039-1046
No abstract available.
Carcinoma, Transitional Cell*
5.MR Imaging of Childhood Metachromatic Leukodystrophy.
Yun Sun CHOI ; Jae Young LEE ; Tae Sung KIM ; In One KIM ; Kyung Mo YEON ; Ok Hwa KIM ; Yong Seung HWANG
Journal of the Korean Radiological Society 1995;33(3):433-437
PURPOSE: The purpose of this study was to analyze the characteristic MR findings of childhood metachromatic leukodystrophy. MATERIALS AND METHODS: Five female patients (10--29 months old;mean age, 21.8 months) of biochemically confirmed metachromatic leukodystrophy were included in this study. We evaluated the extent of white matter degeneration, which was shown as high signal intensity on T2-weighted image, and the presence or absence of the enhancement. Result.' All 5 cases showed high signal intensity in periventricular deep white matter and centrum semiovale which were bilateral, symmetric and confluent. Posterior predominace, sparing of subcortical U fibers and immediate periventricular white matter, and the involvement of splenium of corpus callosum were also noted in all cases. There were other manifestations, such as 'tigroid pattern' in centrum semiovale (n=4), the involvement of genu of corpus callosum(n=4), posterior limb of internal capsule(n=4), descending pyramidal tracts (n=3), deep cerebellar white matter(n=1), claustrum(n=2), and diffuse brain atrophy(n=1). In three cases with Gd-infusion, contrast enhancement of the lesion was not seen. CONCLUSION: In childhood metachromatic leukodystrophy, MRI can clearly demonstrate the chracteristic extent of the white matter lesion and other associated findings, facilitating the differential diagnosis from other similar leukodystrophies.
Brain
;
Corpus Callosum
;
Diagnosis, Differential
;
Extremities
;
Female
;
Humans
;
Leukodystrophy, Metachromatic*
;
Magnetic Resonance Imaging*
;
Pyramidal Tracts
6.Rupture and Spontaneous Sealing of a Coronary Aneurysm After Deployment of Drug-Eluting Stent.
Tae Jung KWON ; Jin Yong HWANG ; Choong Hwan KWAK ; Young Hoon JEONG ; Yong Whi PARK ; Seok Jae HWANG ; Jeong Rang PARK ; Jong Hwa AHN ; Ji Hyun MIN
Korean Circulation Journal 2012;42(8):558-561
Lesions with coronary artery aneurysm (CAA) can become complicated during percutaneous coronary intervention. Here, we report a case of a 78-year-old man who developed a rupture, and spontaneous sealing of the CAA occurred after stent implantation, as shown by computed tomography coronary angiography.
Aged
;
Aneurysm
;
Congenital Abnormalities
;
Coronary Aneurysm
;
Coronary Angiography
;
Coronary Vessels
;
Drug-Eluting Stents
;
Ear
;
Humans
;
Percutaneous Coronary Intervention
;
Rupture
;
Stents
7.The Activity of c-Jun N-terminal Kinase (JNKb) in Patients with UIP.
Kiup KIM ; Young Mok LEE ; Do Jin KIM ; Seung Hyuk MOON ; Soo Taek UH ; Yong Hoon KIM ; Choon Sik PARK ; Hyunjo KIM ; Wook YOUM ; Jung Hwa HWANG
Tuberculosis and Respiratory Diseases 2001;51(5):437-447
BACKGROUND: TNF-alpha is related to the generation of lung fibrosis in patients with UIP. The precise mechanism leading to lung fibrosis by TNF-alpha is unknown. However, the activation of a transcription factor like AP-1(down stream of c-jun N-terminal kinase, JNK) by TNF-alpha may be related to the induction of fibrogenic cytokines like PDGF or IGF-I. Furthermore, JNK was reported to be activated in the radiation-in-duced lung fibrosis model. This study examined JNK activity in patients with UIP. METHODS: The expression of phosphorous JNK(p-JNK), macrophage/moncoyte specific markers, CD68, and cytokeratin was evaluated by immunohistochemical (IHC) staining of lung tissues from patients with UIP and lung cancer. An in vitro kinase assay was performed with alveolar macrophages obtained by a bronchollung cancer. An in vitro kinase assay was performed with alvolar macrophages obrtained by a bronchol avleolar lavage from patients with UIP and healthy persons as the control. RESULTS: The IHC stain showed that p-JNK is expressed in the almost all of the alveolar macrophages and smooth muscle cells in patients with UIP. In case of the normal areas of the lung from patients with lung cancer, the alveolar macrophages showed little p-JNK expression. Interestingly, increased JNK activity was not found in the in vitro kinase assay of the alveolar macrophages obtained from both patients with UIP and healthy persons as the control. Furthermore, 10 ng/ml of TNF-alpha failed to increase the JNK activity of the alveolar macrophages in both patients with UIP and healthy people. CONCLUSION: The JNK was activated constitutionally in patients with UIP. However, the role of JNK in the pathogenesis of lung fibrosis needs to be clarified.
Constitution and Bylaws
;
Cytokines
;
Fibrosis
;
Humans
;
Insulin-Like Growth Factor I
;
JNK Mitogen-Activated Protein Kinases*
;
Keratins
;
Lung
;
Lung Neoplasms
;
Macrophages
;
Macrophages, Alveolar
;
Myocytes, Smooth Muscle
;
Phosphotransferases
;
Rivers
;
Therapeutic Irrigation
;
Transcription Factors
;
Tumor Necrosis Factor-alpha
8.A Case of Lymphangioleiomyomatosis with Pregnancy.
Seong Ook KIM ; Min Gu KIM ; Yong Hwan WON ; Ho Cheol KIM ; Young Sil HWANG ; Jong Hwa KIM
Tuberculosis and Respiratory Diseases 1995;42(3):375-380
The lymphangioleiomyomatosis(LAM) is a rare disorder, which afflicts mainly young woman of childbearing age, characterized by proliferation of immature smooth muscle cell in the lymphatics. We experienced a case of LAM in 26-years-old pregnant woman, confirmed pathologically by inguinal lymph node biopsy. She has suffered from exertonal dyspnea and dry coughing. The symptoms and chest X-ray were aggravated with pregnancy, but improved after delivery with two times of pregnancy. The chest X-ray showed diffuse reticulonodular infiltration and chest HRCT showed diffuse scattered tiny thin-walled cyst of lung parenchyma. We noted chylous ascites of which triglyceride level is 396 mg/dl. After delivery, the symptoms were getting better. We treated with medroxyprogesterone and planned close observation and follow-up.
Biopsy
;
Chylous Ascites
;
Cough
;
Dyspnea
;
Female
;
Follow-Up Studies
;
Humans
;
Lung
;
Lymph Nodes
;
Lymphangioleiomyomatosis*
;
Medroxyprogesterone
;
Myocytes, Smooth Muscle
;
Pregnancy*
;
Pregnant Women
;
Thorax
;
Triglycerides
9.Molecular cloning of the cDNA of canine homeodomain-interacting protein kinase 2.
Sook Yeon LEE ; Jin Young CHUNG ; Il Seob SHIN ; Eun Wha CHOI ; Cheol Yong HWANG ; Hwa Young YOUN ; Hong Ryul HAN
Journal of Veterinary Science 2005;6(2):141-145
The research of p53 is being conducted to find the mechanisms of tumorigenesis and to treat various cancers. Homeodomain-interacting protein kinase2 (HIPK2) is an important factor to regulate p53 and to increase the stability of p53. Activation of HIPK2 leads to the selective phosphorylation of p53, resulting in growth arrest and the enhancement of apoptosis. In this study, the canine HIPK2 cDNA fragments were obtained, and their overlapping regions were aligned to give a total sequence of 3489 bp. The canine HIPK2 cDNA (GenBank accession number; AY800385) shares 93% and 90% sequence identity with those of human and mouse HIPK2, respectively. The canine HIPK2 cDNA contains an open reading frame encoding 1163 amino acid residues and the predicted amino acid sequence has 98% and 96% identity with those of human and mouse, respectively. The deduced amino acid sequence of canine HIPK2 has also all domains' sites compared with human and mouse HIPK2. Therefore, these structural similarities suggested that the canine HIPK2 shares the basic biological functions that HIPK2 exhibit in other species.
Amino Acid Sequence
;
Animals
;
Base Sequence
;
Cloning, Molecular
;
DNA, Complementary/chemistry/genetics
;
Dogs/metabolism/*physiology
;
Male
;
Molecular Sequence Data
;
Polymerase Chain Reaction/veterinary
;
Protein-Serine-Threonine Kinases/*genetics
;
Sequence Alignment
;
Sequence Analysis, DNA
10.Anti-calcification Effects in Decellularized and Variously Fixed Bovine Pericardium.
Seong Wook HWANG ; Yong Jin KIM ; Soo Hwan KIM ; Seung Hwa CHOI
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(3):235-245
BACKGROUND: Our goal was to evaluate anti-calcification effects of decellularization and diverse fixing methods including preincubation of the bovine pericardium with ethanol. We also assessed changes in mechanical properties. MATERIAL AND METHOD: Harvested bovine pericardium was decellularized with 0.25% sodim dodecysulfate and then treated with 5 methods of fixation: (1) 0.5% glutaraldehyde (GA) for 14 days, (2) 0.5% GA for 5 days, 2% GA for 2 days and 0.25% GA for 7 days, (3) 0.5% GA for 5 days, 2% GA for 2 days, 0.25% GA for 7 days, and then 70% ethanol for 2 days, (4) 0.5% GA for 5 days, a mixture of 2% GA and 70% ethanol for 2 days, and 0.25% GA for 7 days, (5) 0.5% GA for 5 days, a mixture of 2% GA, 65% ethanol, and 5% octanediol for 2 days and then 0.25% GA for 7 days. All treated bovine pericardia were tested for histological variables, lipid content, and mechanical properties including tensile strength and thermal stability. A total 10 kinds of differently treated bovine pericardia were implanted into rat subdermis and harvested 8 weeks later. Harvested pericardia were evaluated for calcium content. RESULT: No protein denaturation was observed microscopically after decellularization. There was a 32% mean decrease in tensile strength index after decellularization in the bovine pericardium group fixed. Octanediol preincubation attenuated the decrease in tensile strength and maintained thermal stability. TG and cholesterol were not affected by decellularization but were decreased by organic solvent. Calcium content was decreased after decellularization, and organic solvent preincubation decreased calcification in the non-decellularized bovine pericardium group. CONCLUSION: Decellularization and organic solvent preincubation have anti-calcification effects but decellularization may cause mechanical instability. A method of decellularization and fixation that does not cause damage to matrices will be needed for evaluation of the next step in using tissue-engineering for replacement of cardiac valves.
Animals
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Calcium
;
Cholesterol
;
Ethanol
;
Glutaral
;
Heart Valves
;
Pericardium
;
Protein Denaturation
;
Rats
;
Tensile Strength
;
Tissue Engineering