1.Significance of renal resistive indec in diabetics: preliminary report.
Ki Whang KIM ; Ji Min KIM ; Yeon Hee LEE ; Hyun Ju CHOI ; Doo Hoe HA ; Sung Kyu HA ; Woo Chang CHOI
Journal of the Korean Radiological Society 1991;27(6):861-866
No abstract available.
2.Epstein-Barr Virus Antibodies in Kawasaki Disease.
Soon Ju LEE ; Kyung Yil LEE ; Ji Whan HAN ; Joon Sung LEE ; Kyung Tai WHANG
Yonsei Medical Journal 2006;47(4):475-479
The prevalent ages at onset for Kawasaki Disease (KD) and Epstein-Barr virus (EBV) infection are known to be similar in Korea and Japan. We evaluated the correlation between EBV infection and KD. The antibodies to EBV such as anti-viral capsid antigen (VCA) IgG and IgM, anti-diffuse and restricted early antigen IgG (anti-EADR IgG), and the anti-EBV determined nuclear antigen IgG (anti-EBNA IgG) were examined in 29KD patients at five separate times sequentially during a period of one year, and also in 14 other children with a past history of KD. The results of each group were compared with those of age-matched controls. The positive rates of anti-VCA IgG and IgM at presentation in the KD patients were 41.4% (12/29) and 0% (0/29), respectively. Only one patient was found to be anti-VCA IgM-positive within two months. There were no cases of anti-VCA IgG except one, anti-EADR IgG and anti-EBNA IgG positive to negative seroconversion during the year. The children with a past history of KD showed higher anti-EBNA IgG-positive rates than the controls (p=0.04). There was no difference in the seropositive rates of the antibodies to EBV, cytomegalovirus, herpes simplex virus and herpes zoster virus. In conclusion, children with KD were noted to have normal immune responses to EBV infection. Children with a past history of KD seemed to be infected with EBV at a later age than children with no history of KD.
Mucocutaneous Lymph Node Syndrome/*virology
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Male
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Korea
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Infant
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Immunoglobulins/metabolism
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Immunoglobulin M/chemistry
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Immunoglobulin G/chemistry
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Humans
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Herpesvirus 4, Human/*metabolism
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Female
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Epstein-Barr Virus Infections/*complications
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Child, Preschool
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Antibodies, Viral/*chemistry
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Age of Onset
3.Dynamic CT Perfusion Imaging for the Detection of Crossed Cerebellar Diaschisis in Acute Ischemic Stroke.
Young Wook JEON ; Seo Hyun KIM ; Ji Yong LEE ; Kum WHANG ; Myung Soon KIM ; Young Ju KIM ; Myeong Sub LEE
Korean Journal of Radiology 2012;13(1):12-19
OBJECTIVE: Although the detection of crossed cerebellar diaschisis (CCD) by means of different imaging modalities is well described, little is known about its diagnosis by computed tomography perfusion (CTP) imaging. We investigated the detection rate of CCD by CTP imaging and the factors related to CCD on CTP images in patients with acute ischemic stroke. MATERIALS AND METHODS: CT perfusion maps of cerebral blood volume (CBV), cerebral blood flow (CBF), mean transit time (MTT), and time-to-peak (TTP) obtained from 81 consecutive patients affected by an acute ischemic stroke were retrospectively reviewed. Whole-brain perfusion maps were obtained with a multichannel CT scanner using the toggling-table technique. The criteria for CCD was a unilateral supratentorial ischemic lesion and an accompanying decrease in perfusion of the contralateral cerebellar hemisphere on the basis of CTP maps by visual inspection without a set threshold. Maps were quantitatively analyzed in CCD positive cases. RESULTS: The criteria for CCD were fulfilled in 25 of the 81 cases (31%). Detection rates per CTP map were as follows: MTT (31%) > TTP (21%) > CBF (9%) > CBV (6%). Supratentorial ischemic volume, degree of perfusion reduction, and infratentorial asymmetry index correlated strongly (R, 0.555-0.870) and significantly (p < 0.05) with each other in CCD-positive cases. CONCLUSION: It is possible to detect CCD on all four of the CTP-based maps. Of these maps, MTT is most sensitive in detecting CCD. Our data indicate that CTP imaging is a valid tool for the diagnosis of CCD in patients affected by an acute hemispheric stroke.
Aged
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Blood Flow Velocity
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Cerebellar Diseases/*radiography
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Cerebral Angiography/*methods
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Cerebrovascular Circulation
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Contrast Media/diagnostic use
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Female
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Humans
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Iohexol/diagnostic use
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Magnetic Resonance Imaging
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Male
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Radiographic Image Interpretation, Computer-Assisted
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Retrospective Studies
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Stroke/*radiography
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Tomography, X-Ray Computed/*methods
4.Spontaneous Rupture of Renal Artery Aneurysm in a Patient with Untreated Hypertension.
Ji Il KIM ; Hak Jun SEO ; Ok Ran SHIN ; Sun Wha SONG ; Eun Mi WHANG ; Kang JU ; Young Soo KIM ; Sun Ae YOUN ; Young Ok KIM
Korean Journal of Nephrology 2003;22(6):763-766
Spontaneous rupture of renal artery aneurysm is a rare, but life threatening complication with high mortality. The etiology of non-traumatic renal artery aneurysm is fibromuscular dysplasia, atherosclerosis, vasculitis, and pregnancy. We here report a case of spontaneous rupture of renal artery aneurysm in a patient with untreated hypertension. A 39-year-old non-pregnant woman complained of sudden onset of right flank and lower quadrant abdominal pain. Ultrasonography showed large fluid collection in right lower abdomen. Emergency laparotomy demonstrated huge retroperitoneal hematoma due to spontaneous rupture of right renal artery aneurysm. Microscopic examination of the aneurysmal wall revealed intimal hyperplasia without atherosclerotic change.
Abdomen
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Abdominal Pain
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Adult
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Aneurysm*
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Atherosclerosis
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Emergencies
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Female
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Fibromuscular Dysplasia
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Hematoma
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Humans
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Hyperplasia
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Hypertension*
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Laparotomy
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Mortality
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Pregnancy
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Renal Artery*
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Rupture, Spontaneous*
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Ultrasonography
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Vasculitis
5.A Case of the McCune: Albright Syndrome Associated with Activating Mutations of Stimulatory G Protein.
Phil Ho CHUNG ; Jung Kyu WHANG ; Youn Yee KIM ; Ji Ju WHANG ; Chan Moon PARK ; Chang Hoon YIM ; Ho Yeun CHUNG ; Ki Ok HAN ; Hak Chul JANG ; Hyun Koo YOON ; Hun Ki MIN ; Sung Ran HONG ; Young Soon KANG ; In Gul MOON ; In Kwon HAN
Journal of Korean Society of Endocrinology 1999;14(4):779-785
McCune-Albright syndrome (MAS) is a sporadic disease classically including polyostotic fibrous dysplasia, cafe -au-lait spots, sexual precocity, and other hyperfunctional endocrinopathies. Recent investigations suggest an etiological role for activating embryonic somatic missense mutations in the gene for the a subunit of Gs (Gsa), the G protein that stimulates adenylyl cyclase. DNA from bone, ovary, and blood was analyzed by using polymerase chain reaction and sequenced. A embryological somatic mutation of Gsa gene encoding substitution of a Cys for Arg at amino acid 201 from cells of dysplastic bone and ovary was observed, and the distribution of mutant gene reveals mosaic pattern. We report a case of McCune-Albright syndrome with an activating mutation at codon 201 of Gsa subunit on ovary and bone tissue that was experienced recently.
Adenylyl Cyclases
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Bone and Bones
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Codon
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DNA
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Female
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Fibrous Dysplasia, Polyostotic*
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GTP-Binding Proteins*
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Mutation, Missense
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Ovary
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Polymerase Chain Reaction
6.Effect of ECQ on Iodoacetamide-Induced Chronic Gastritis in Rats.
Se Eun LEE ; Hyun Ju SONG ; Sun Young PARK ; Yoonjin NAM ; Chang Ho MIN ; Do Yeon LEE ; Jun Yeong JEONG ; Hyun Su HA ; Hyun Jung KIM ; Wan Kyun WHANG ; Ji Hoon JEONG ; In Kyeom KIM ; Hak Rim KIM ; Young Sil MIN ; Uy Dong SOHN
The Korean Journal of Physiology and Pharmacology 2013;17(5):469-477
This study investigated effect of extract containing quercetin-3-O-beta-D-glucuronopyranoside from Rumex Aquaticus Herba (ECQ) against chronic gastritis in rats. To produce chronic gastritis, the animals received a daily intra-gastric administration of 0.1 ml of 0.15% iodoacetamide (IA) solution for 7 days. Daily exposure of the gastric mucosa to IA induced both gastric lesions and significant reductions of body weight and food and water intake. These reductions recovered with treatment with ECQ for 7 days. ECQ significantly inhibited the elevation of the malondialdehyde levels and myeloperoxidase activity, which were used as indices of lipid peroxidation and neutrophil infiltration. ECQ recovered the level of glutathione, activity of superoxide dismutase (SOD), and expression of SOD-2. The increased levels of total NO concentration and iNOS expression in the IA-induced chronic gastritis were significantly reduced by treatment with ECQ. These results suggest that the ECQ has a therapeutic effect on chronic gastritis in rats by inhibitory actions on neutrophil infiltration, lipid peroxidation and various steps of reactive oxygen species (ROS) generation.
Animals
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Body Weight
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Drinking
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Gastric Mucosa
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Gastritis*
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Glutathione
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Iodoacetamide*
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Lipid Peroxidation
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Malondialdehyde
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Neutrophil Infiltration
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Peroxidase
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Quercetin*
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Rats*
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Reactive Oxygen Species
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Rumex
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Superoxide Dismutase