2.Acute Tumor Lysis Syndrome.
Sun Oak PARK ; In Sil LEE ; Hyp Seop AHN ; Yong CHOI
Journal of the Korean Pediatric Society 1984;27(3):303-312
No abstract available.
Tumor Lysis Syndrome*
3.Effect of Calcium Channel Blocker on Gene Expression of Renin after lschemic Renal Injury.
Kyu Beck LEE ; Dae Ryong CHA ; Yong Seop KIM ; Won Yong CHO ; Hyoung Kyu KIM
Korean Journal of Medicine 1997;53(3):325-333
OBJECTIVES: lschemic acute renal failure(ARF) is characterized by an abrupt and sustained decline in GFR within minutes to days after renal ischemia and not immediately reversed on restoration of renal blood flow. The typical delay of a few days to a few weeks suggests reversible parenchymal damage awaiting cell regeneration for functional recovery. Many potentially cell damaging factors, such as ATP depletion, plasma membrane phospholipid degradatian and superoxide-induced membrane damage, play a central part in ischemic injury. More recently, much attention has been focused on the role of calcium, especially ischemic cell injury and the possible therapeutic role of calcium channel blockers emerged from studies conducted several years ago. In the past, it was thought that activation of renin-angiotensin system plays a role in the pathogenesis of ARF. Now the role of angiotensin in human renal ischemia also appears to be controversial. The following study was done in order to investigate the effect of a calcium channel blocker, nifedipine, on gene expression of renin during acute ischemic renal injury. METHODS: The Sprague-Dawley rats were divided into 4 groups, group I(n=3) as the control, group II (n=3) as the sham operation group, group III(n=15) as the ischemic renal injury group without nifedipine pretreatment, and group IV(n=15) as the ischemic renal injury model by right nephrectomy and left renal artery clamping for 40 minutes with systemic nifedipine pretreatment(10mg/kg), 1n ischemic renal injury model(group III and IV), rats were further divided into three subgroups according to reperfusion time of 1,24,72 hours. The non-ischemic right kidney removed at the time of initial procedure served as paired control. Total renal RNA was extracted by Chomczynskis method and electrophoresis was done in a 1% agarose gel containing 2,2M formaldehyde. Northern was performed at 42degrees C with isotope labeled renin probe for 18 hours, Autoradiographs were obtained and quantitated by a densitometer measured at 530nm. RESULTS: 1) The expression of renin gene was markedly decreased after renal ischemia and slowly recovered to one half of the control level after 72 hours of reperfusion. 2) Renin gene expression pattern of ischemic renal injury with prior nifedipine treatment was similar to the ischemic group without nifedipine pretreatment. CONCLUSION: These findings suggest that the renin gene expression was markedly decreased after renal ischemia and slowly recovered. Systemic nifedipine pretreatment does not have a significant effect on gene expression pattern of renin in ischemic renal injury.
Adenosine Triphosphate
;
Angiotensins
;
Animals
;
Calcium Channel Blockers
;
Calcium Channels*
;
Calcium*
;
Cell Membrane
;
Constriction
;
Electrophoresis
;
Formaldehyde
;
Gene Expression*
;
Humans
;
Ischemia
;
Kidney
;
Membranes
;
Nephrectomy
;
Nifedipine
;
Rats
;
Rats, Sprague-Dawley
;
Regeneration
;
Renal Artery
;
Renal Circulation
;
Renin*
;
Renin-Angiotensin System
;
Reperfusion
;
RNA
;
Sepharose
4.Eruptive Neonatal Hemangiomatosis.
Yong Seop CHOI ; Dong Kun KIM ; Hae Eul LEE ; Chul LEE
Annals of Dermatology 1992;4(2):108-112
Eruptive neonatal hemangiomatosis is an uncommon disorder, which is divided into two types according to the extent of involvement: Benign type with cutaneous hemangiomatosis only and diffuse type with widespread hemangiomas of skin and viscera. The organs commonly affected are the gastrointestinal tract, brain, liver and lung. The Diffuse type is often fatal. We herein report a case of eruptive neonatal hemangtomatosis with cutaneous and hepatic involvement. The size of the hepatic arteriovenous malformation was markedly decreased after 2 months' therapy with oral prednisolone.
Arteriovenous Malformations
;
Brain
;
Gastrointestinal Tract
;
Hemangioma
;
Liver
;
Lung
;
Prednisolone
;
Skin
;
Viscera
5.Correction of severe foot deformity using ilizarov external fixator.
In Ho CHOI ; Duk Yong LEE ; Chin Youb CHUNG ; Jin Sup YEOM ; Chang Seop LEE
The Journal of the Korean Orthopaedic Association 1992;27(3):611-624
No abstract available.
External Fixators*
;
Foot Deformities*
;
Foot*
6.A case of antineoplastic treatment - related leukoencephalopathy.
Jee Suk YU ; Se Hee HWANG ; Baeck Hee LEE ; Yong Seung HWANG ; Hyo Seop AHN
Journal of the Korean Child Neurology Society 1993;1(1):165-172
No abstract available.
Leukoencephalopathies*
7.Molecular Genetic Characteristics of Trimethoprim Resistance in Clinical and Normal Fecal Isolates of Escherichia coli.
Sung Yong SEOL ; Dong Taek CHO ; Yoo Chul LEE ; Haeng Seop SHIN ; Neung Hee KIM
Journal of the Korean Society for Microbiology 1999;34(4):347-361
One hundred and thirty trimethoprim-resistant R plasmids derived from of Escherichia coli isolated from clinical specimens and feces of healthy collegians were examined for incompatibility, EcoRI endonuclease restriction fragment pattern, and Southern hybridization with DHFR I, II, III, V, and VII probe. 1. Most trimethoprim-resistant R plasmids were resistant to ampicillin, tetracycline, chloramphenicol, gentamicin, and kanamycin, and showed multiple drug resistance and various antimicrobial resistance patterns. 2. Trimethoprim-resistant R plasmids ranged from 90 to 50 kilobase and 42.3% of R plasmids tested were classified to incompatibilty group Inc FI, Inc FII or Inc FIV, 3. Among 48 random selected R plasmids from various origin, 14 R plasmids (including 9 of 14 Inc FII plasmids and 3 of 14 Inc FI plasmids) hybridized with DHFR VII oligonucleotide probe but others did not respond to any of DHFR probes used. 4. Most R plasmids showed various EcoRI endonuclease fragments and different reaction sites by Southern hybridization. Six plasmids showed identical or nearly identical molecular weight, EcoRI endonuclease fragment patterns and different sites of Southern hybridization. But 2 Inc FII plasmids derived from urine and feces showed identical pattern. These findings, if confirmed by further studies, suggest that normal flora E. coli can act as reservoir of resistant genes and, consequently, as a factor in the dissemination of these genes among enteric pathogens and need to be examined further.
Ampicillin
;
Chloramphenicol
;
Deoxyribonuclease EcoRI
;
Drug Resistance, Multiple
;
Escherichia coli*
;
Escherichia*
;
Feces
;
Gentamicins
;
Immunodeficiency Virus, Feline
;
Kanamycin
;
Molecular Biology*
;
Molecular Weight
;
Plasmids
;
R Factors
;
Tetracycline
;
Trimethoprim Resistance*
;
Trimethoprim*
8.Entrapment of the Posterior Interosseous Nerve Caused by Arcade of Frohse
Dae Yong HAN ; Jun Seop JAHNG ; Jae In AHN ; Eung Shick KANG ; Min LEE
The Journal of the Korean Orthopaedic Association 1979;14(3):527-531
There has been increased attention given to the radial tunnel syndrome since Roles and Maudsley first described it in 1972. The occurance of radial tunnel syndrome is due to the following four anatomical causes: the fibrous bands in front of the "radial head, the radial recurrent fan" of vessels, and the tendinous margins of extensor carpi radialis brevis and of the arcade of Frohse. In these cases, the progressive paralysis of the posterior interosseous nerve was caused by the arcade of Frohse and the radial recurrent artery. The results of splitting the arcade of Frohse and dividing the radial recurrent artery have been sufficiently good in all 3 cases.
Arteries
;
Head
;
Paralysis
9.The Effects of Electrical Nerve Stimulation on Glycogen Content of the Slow and Fast Twitch Muscles in Rats
Duk Seop SHIN ; Sae Dong KIM ; Joo Chul IHN ; Yong Woon KIM ; Suck Kang LEE
The Journal of the Korean Orthopaedic Association 1989;24(2):613-618
This study observed the changes of the glycogen content in extensor digitorum and soleus by electrical stimulation on the sciatic nerve with various frequencies, and the result were compared with those of treadmill running exercise. The results are summarized as follows ; The glycogen content of extensor digitorum longus was greater than that of the soleus in the normal group, and the reducing amount of glycogen content of extensor digitorum longus was greater than that of the soleus by overnight fasting. As the frepuency of electrical stimulation was increased by 2, 5 and 10Hz., the glycogen content of the extensor digitorum longus was slightly reduced or changed minimally. As the loading period of clectrical stimulation was increased to 30 and 90minutes, the glycogen content of extensor digitorum longus was much reduced from early stage, and that of the soleus was the same tendency as the frepuency increased. The glycogen content of the extensor digitorum longus was proportionally reduced by treadmill running excercise, and that of the soleus was much reduced from the early stage. In summary, based on the experimental evidence of this investigation, it showed the different physio-chemical responses of th fast and slow twitch muscle fibers by electrical stimulation, and also not the equal responses of muscle fibers by electrical stimulation and treadmill running exercise.
Animals
;
Electric Stimulation
;
Fasting
;
Glycogen
;
Muscles
;
Rats
;
Running
;
Sciatic Nerve
10.An Emergency Stenting for Acute Vertebrobasilar Artery Occlusion: Case Report.
Byung Chan LIM ; Kyu Yong CHO ; Jun Seop LIM ; Rae Seop LEE ; Young Cheol OK
Korean Journal of Cerebrovascular Surgery 2011;13(4):297-302
Acute vertebrobasilar artery occlusion is a fatal event, even after intra-arterial thrombectomy and thrombolysis. We are reporting a case of acute vertebral artery (VA) occlusion. A 37-year-old man was admitted with mild dizziness, but cardiopulmonary arrest suddenly developed after eleven hours. We performed cardiopulmonary resuscitation immediately and his mental and vital state was recovered. Thus we performed intra-arterial thrombectomy, thrombolysis and balloon angioplasty for left vertebral artery occlusion. But pre-existing stenosis of VA was revealed during intervention so we inserted a stent to the stenotic area. Conclusively, we obtained the good angiographical and clinical outcomes.
Adult
;
Angioplasty
;
Angioplasty, Balloon
;
Arteries
;
Cardiopulmonary Resuscitation
;
Constriction, Pathologic
;
Dizziness
;
Emergencies
;
Heart Arrest
;
Humans
;
Stents
;
Thrombectomy
;
Vertebral Artery