1.Thalamic Ataxia in the Elderly.
Byeong Chul OH ; Man Wook SEO ; Yun Jeong YANG
Journal of the Korean Geriatrics Society 1999;3(2):96-101
Ataxia is one of the most serious neurological symptoms in elderly The clarification of the related anatomical structures are necessary for the understanding of pathophysiologic mechanisms of ataxia. We have recently experienced a case of thalamic infarct in the territory of thalamogeniculate artery. The localization of lesion was based on CT and MR imaging. At first time, right hemiparesis and ataxia were prominent. Hemiparesis was transient but ataxia had been persistent for several months. It has been suspected that thalamus could be the part of neural circuits in balancing. Our case support this suggestion clinically. Based on clinical observations, a plausible extrapolation can be made to thalamic ataxia. It maybe related with dysfunction of dentatorubrothalamic and corticopontine pathway. Thus our case led us to conclude that thalamus could be engaged in balance control of human body.
Aged*
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Arteries
;
Ataxia*
;
Human Body
;
Humans
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Magnetic Resonance Imaging
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Paresis
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Thalamus
2.Giant cell tumor in cervical spine: a report of two cases.
Byeong Mun PARK ; Yeo Hon YUN ; Ick Hwan YANG
The Journal of the Korean Orthopaedic Association 1991;26(3):1010-1015
No abstract available.
Giant Cell Tumors*
;
Giant Cells*
;
Spine*
3.Two Cases of Marchiafava-Bignami Disease.
Byeong Cheol OH ; Yun Jeong YANG ; Young Hyun KIM
Journal of the Korean Neurological Association 1999;17(5):764-766
We described 2 patients with Marchiafava-Bignami disease, a neurological disorder associated with chronic alcohol consumption. Patient 1 expressed general weakness and confusion, while patient 2 expressed dysphagia and seizures. Lesions involving the corpus callosum were identified with T2 weighted MR imaging in which there was a hyperintensity in the splenium of patient 1 and in the entire corpus callosum of patient 2. While the conditions of both patients were improved by with nutritional support, they were left with cognitive impairment.
Alcohol Drinking
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Corpus Callosum
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Deglutition Disorders
;
Demyelinating Diseases
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Humans
;
Magnetic Resonance Imaging
;
Marchiafava-Bignami Disease*
;
Nervous System Diseases
;
Nutritional Support
;
Seizures
4.'Rescue Therapy' with Mycophenolate Mofetil in Non-transplant Renal Disease Patients Experienced Conventional Immunosuppressive Treatments : Clinical Observation.
Byeong Yun YANG ; Jin KANG ; Sang Heon SONG ; Dong Won LEE ; Ihm Soo KWAK
Korean Journal of Nephrology 2008;27(1):110-116
PURPOSE: Mycophenolate mofetil (MMF) is thought to have not only low frequency of adverse side effects but also have equal efficacy to other conventional immunosuppressants (CIS). But It's hard to conclude that CIS may be replaceable with MMF. So we inquired into another aspect of MMF as 'Rescue therapy' in non-transplant renal diseases. METHODS: Twenty nine patients with non-transplant renal diseases received MMF therapy between January 2000 and April 2007. Eighteen patients who had received MMF more than 6 months were included. Sixteen of the 18 patients included were resistant to CIS and two were patients who maintained complete remission (CR) with MMF because of the adverse side effects of CIS. Treatment outcome was evaluated by dip-stick urine test. CR was defined by negative or trace, partial remission (PR) by 1 positive and treatment failure (TF) by more than 1 positive. RESULTS: Eleven of the resistant 16 patients had shown CR (69%) and maintained CR. Two of maintenance therapy with MMF had kept CR more than 12 months. The proportions of the patients who had shown decreased proteinuria in each treatment duration were 69% for 3 months (p=0.005), 81% for 6 months (p=0.001), 86% for 9 months (p=0.002) and 91% for 12 months (p=0.004), respectively. There were few adverse effects. CONCLUSION: We observed the efficacy of MMF in decreasing proteinuria and maintaining CR as 'Rescue therapy' for previously treated non-transplant renal disease patients with CIS. Large controlled clinical trials are expected for defining this effect.
Humans
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Immunosuppressive Agents
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Kidney Diseases
;
Mycophenolic Acid
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Proteinuria
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Treatment Failure
;
Treatment Outcome
5.Pediatric Fetal Rhabdomyoma Representing as Acute Mastoiditis: A Case Report and Literature Review
Byeong Jin KIM ; Yun Na YANG ; Chan Mi LEE ; Eun Jung LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2022;65(5):283-287
Rhabdomyomas are rare benign tumors. Most extracardiac rhabdomyomas are found in the head and neck region, especially in the pharynx and larynx. Herein, we have described the case of a 1-year-old boy presenting with recurrent otorrhea and postauricular swelling. His symptoms were due to a mass that was histologically diagnosed as fetal rhabdomyoma (FR). Here, we report the first case of FR in the postauricular area. Clinicians should keep in mind the possibility of FR if a child presents with external auditory canal mass associated with recurrent otorrhea and signs of mastoiditis.
6.Primary copper-associated chronic hepatitis without copper metabolism domain containing 1 mutation in a Dalmatian: a case report
Sumin YUN ; Dohee LEE ; Jimin OH ; Yeon CHAE ; Taesik YUN ; Yoonhoi KOO ; Mhan-Pyo YANG ; Byeong-Teck KANG ; Hakhyun KIM
Korean Journal of Veterinary Research 2022;62(4):e31-
A 12-year-old intact male Dalmatian dog presented hyporexia and vomiting for 1 week. Blood analysis revealed increased liver enzyme activity. Histopathological examination of the liver confirmed chronic hepatitis with fibrosis and necrosis. Copper staining revealed marked copper accumulation (2,770 ppm; normal range, 200 to 400 ppm), prominent in the centrilobular region, and compatible with copper-associated chronic hepatitis. However, copper metabolism domain containing 1 (COMMD1) mutation predisposing to copper accumulation in the liver tissue was not identified. The dog received medications but died 1 month after first visit. This is the first case of primary copper-associated hepatitis without COMMD1 mutation in a Dalmatian dog in South Korea.
7.Effects of Celecoxib and Nordihydroguaiaretic Acid on Puromycin Aminonucleoside-Induced Nephrosis in the Rat.
Dong Won LEE ; Ihm Soo KWAK ; Soo Bong LEE ; Sang Heon SONG ; Eun Young SEONG ; Hyun Chul CHUNG ; Byeong Yun YANG ; Min Young LEE ; Mee Young SOL
Journal of Korean Medical Science 2009;24(Suppl 1):S183-S188
The selective cyclooxygenase-2 (COX-2) and 5-lipoxygenase (LOX) inhibitors might inhibit prostaglandin synthesis and reduce proteinuria. The present study was designed to investigate the anti-proteinuric effects of nordihydroguaiaretic acid (NDGA) as compared with celecoxib in puromycin aminonucleoside (PAN) nephrosis rats. Fifty five male Sprague-Dawley rats were divided into 4 groups; A, normal control; B, PAN group; C, PAN+COX-2 inhibitor (celecoxib) group; and D, PAN+5-LOX inhibitor (NDGA) group. After induction of PAN nephrosis through repeated injections of PAN (7.5 and 15 mg/100 g body weight), rats were treated with celecoxib, NDGA, or vehicle for 2 weeks. Twenty four hour urine protein excretions were significantly lower in PAN+celecoxib and PAN+NDGA groups than in PAN group. Serum creatinine (SCr) concentrations and 24 hr urine creatinine clearances (CCr) were not significantly different in the four groups. Electron microscopy showed that podocyte morphology was changed after the induction of PAN nephrosis and was recovered after celecoxib or NDGA administration. Celecoxib significantly recovered the expressions of nephrin, CD2AP, COX-2, and TGF-beta. NDGA also recovered TGF-betaexpression, but did not alter the expressions of nephrin, CD2AP and COX-2. The present study suggested that celecoxib and NDGA might effectively reduce proteinuria in nephrotic syndrome without impairing renal function.
Animals
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Anti-Inflammatory Agents, Non-Steroidal/pharmacology
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Body Weight
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Creatinine/blood
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Cyclooxygenase Inhibitors/pharmacology
;
Male
;
Microscopy, Electron
;
Nephrosis/*chemically induced/drug therapy
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Nordihydroguaiaretic Acid/*pharmacology
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Podocytes/metabolism
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Puromycin Aminonucleoside/pharmacology/*toxicity
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Pyrazoles/*pharmacology
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Rats
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Rats, Sprague-Dawley
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Sulfonamides/*pharmacology
;
Time Factors
8.Post-treatment Effects of Erythropoietin and Nordihydroguaiaretic Acid on Recovery from Cisplatin-induced Acute Renal Failure in the Rat.
Dong Won LEE ; Ihm Soo KWAK ; Soo Bong LEE ; Sang Heon SONG ; Eun Young SEONG ; Byeong Yun YANG ; Min Young LEE ; Mee Young SOL
Journal of Korean Medical Science 2009;24(Suppl 1):S170-S175
5-Lipoxygenase inhibitor and human recombinant erythropoietin might accelerate renal recovery in cisplatin-induced acute renal failure rats. Male Sprague-Dawley rats were randomized into four groups: 1) normal controls; 2) Cisplatin group-cisplatin induced acute renal failure (ARF) plus vehicle treatment; 3) Cisplatin+nordihydroguaiaretic acid (NDGA) group-cisplatin induced ARF plus 5-lipoxygenase inhibitor treatment; 4) Cisplatin+erythropoietin (EPO) group-cisplatin induced ARF plus erythropoietin treatment. On day 10 (after 7 daily injections of NDGA or EPO), urea nitrogen and serum Cr concentrations were significantly lower in the Cisplatin+NDGA and Cisplatin+EPO groups than in the Cisplatin group, and 24 hr urine Cr clearances were significantly higher in the Cisplatin+EPO group than in the Cisplatin group. Semiquantitative assessments of histological lesions did not produce any significant differences between the three treatment groups. Numbers of PCNA(+) cells were significantly higher in Cisplatin, Cisplatin+NDGA, and Cisplatin+EPO groups than in normal controls. Those PCNA(+) cells were significantly increased in Cisplatin+NDGA group. These results suggest that EPO and also NDGA accelerate renal function recovery by stimulating tubular epithelial cell regeneration.
Animals
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Arachidonate 5-Lipoxygenase/administration & dosage
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Blood Urea Nitrogen
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Cisplatin/*toxicity
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Creatinine/urine
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Epithelial Cells/drug effects
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Erythropoietin/administration & dosage/*therapeutic use
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Kidney/metabolism
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Kidney Failure, Acute/*chemically induced/*drug therapy
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Kidney Tubules/drug effects
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Male
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Nordihydroguaiaretic Acid/*therapeutic use
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Rats
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Rats, Sprague-Dawley
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Regeneration
9.Use of low-dose sulodexide in IgA nephropathy patients on renin-angiotensin system blockades.
Byeong Yun YANG ; Hee Seon LEE ; Sang Heon SONG ; Ihm Soo KWAK ; Soo Bong LEE ; Dong Won LEE ; Eun Young SEONG
Kidney Research and Clinical Practice 2012;31(3):163-169
BACKGROUND: Despite using renin-angiotensin system (RAS) blockades, some of the patients with immunoglobulin A (IgA) nephropathy often had persistent proteinuria of more than 500mg/d. They need to be managed further by alternative methods to halt the progression of the disease; these methods could also be applied safely over a long period of time. In this context, sulodexide has been studied for the management of diabetic nephropathy. METHODS: A retrospective review was carried out involving 20 patients with IgA nephropathy who had been taking sulodexide (50mg daily) as an add-on therapy together with an optimal dose of RAS blockades during 2008-2009. We evaluated the proteinuria reduction rates and renal function changes. RESULTS: During 11.1+/-72.7 months of follow-up duration, urinary protein-to-creatinine ratio (UPCR) decreased for 1.57+/-0.6 to 1.17+/-0.7 g/g (P=0.032). Twenty-five percent of the patients showed a greater than 50% reduction of UPCR, and 40% had a UPCR of less than 1.0g/g at their final observations. The analysis of the factors contributing to the effect found that a higher pretreatment UPCR showed a significant correlation with the UPCR decrease (r=0.45, P=0.047). Neither the adverse effects nor the renal function impairments were documented during the management. CONCLUSION: Low-dose sulodexide has an additional modest antiproteinuric effect on IgA nephropathy undergoing RAS blockade therapy.
Follow-Up Studies
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Glomerulonephritis, IGA
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Glycosaminoglycans
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Humans
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Immunoglobulin A
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Proteinuria
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Renin-Angiotensin System
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Retrospective Studies
10.Pyeloduodenal Fistula Successfully Treated By Endoscopic Ligation without Surgical Nephrectomy: Case Report.
Kyung Nam LEE ; In Hye HWANG ; Min Ji SHIN ; Soo Bong LEE ; Il Young KIM ; Dong Won LEE ; Harin RHEE ; Byeong Yun YANG ; Eun Young SEONG ; Ihm Soo KWAK
Journal of Korean Medical Science 2014;29(1):141-144
A 74-yr-old woman presented with fever and abdominal discomfort. She was in a septic condition caused by urinary tract infection. Her computed tomogram of the abdomen revealed features of hydronephrosis with ureteral stones in both kidneys. During percutaneous nephrostomies, right pyeloduodenal fistula (PDF) was diagnosed. Elective surgery was originally planned but the patient was in a poor condition to undergo surgery. Instead, 2 times endoscopic clipping and ligation by endoloop were applied with parenteral antibiotics for the fistula lesion. On admission day 30, she was discharged from the hospital after confirmation of no more contrast leakage on fistulography. We reviewed the literature and discuss the etiologies, clinical presentations, diagnosis, and treatment of PDF.
Aged
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Duodenal Diseases/complications/radiography/*surgery
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Female
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Humans
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Hydronephrosis/complications/radiography
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Intestinal Fistula/complications/radiography/*surgery
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Kidney/radiography/surgery
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Kidney Calculi/complications/radiography
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Kidney Diseases/complications/radiography/*surgery
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Ligation
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Urethral Obstruction/complications/radiography
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Urinary Fistula/complications/radiography/*surgery
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Urinary Tract Infections/complications/radiography