1.Variation of nuclear and mitochondrial DNAs in Korean and Chinese isolates of Clonorchis sinensis.
The Korean Journal of Parasitology 2004;42(3):145-148
We compared the DNA sequence difference of isolates of Clonorchis sinensis from one Korean (Kimhae) and two Chinese areas (Guangxi and Shenyang). The sequences of nuclear rDNA (18S, internal transcribed spacer 1 and 2: ITS1 and ITS2) and mitochondrial DNA (cytochrome c oxidase subunit 1: cox1) were compared. A very few intraspecific nucleotide substitution of the 18S, ITS1, ITS2 and cox1 was found among three isolates of C. sinensis and a few nucleotide insertion and deletion of ITS1 were detected. The 18S, ITS1, ITS2 and cox1 sequences were highly conserved among three isolates. These findings indicated that the Korean and two Chinese isolates are similar at the DNA sequence level.
Animals
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Base Sequence
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China
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Clonorchis sinensis/enzymology/*genetics
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Comparative Study
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DNA, Helminth/chemistry/*genetics
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DNA, Mitochondrial/chemistry/*genetics
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DNA, Ribosomal/chemistry/genetics
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DNA, Ribosomal Spacer/chemistry
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Electron Transport Complex IV/genetics
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Genetic Markers
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Korea
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Molecular Sequence Data
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RNA, Ribosomal, 18S/genetics
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Research Support, Non-U.S. Gov't
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Sequence Alignment
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Species Specificity
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*Variation (Genetics)
2.Molecular phylogenic location of the Plagiorchis muris (Digenea, Plagiorchiidae) based on sequences of partial 28S D1 rDNA and mitochondrial cytochrome C oxidase subunit I.
Soo Ung LEE ; Sun HUH ; Woon Mok SOHN
The Korean Journal of Parasitology 2004;42(2):71-75
To determine the molecular phylogenic location of Plagiorchis muris, 28S D1 ribosomal DNA (rDNA) and mitochondrial cytochrome C oxidase subunit I (mtCOI) were sequenced and compared with other trematodes in the family Plagiorchiidae. The 28S D1 tree of P. muris was found to be closely related to those of P. elegans and other Plagiorchis species. And, the mtCOI tree also showed that P. muris is in a separate clade with genus Glypthelmins. These results support a phylogenic relationship between members of the Plagiorchiidae, as suggested by morphologic features.
Animals
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Base Sequence
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DNA, Helminth/chemistry/genetics
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DNA, Mitochondrial/chemistry/genetics
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Electron Transport Complex IV/chemistry/*genetics
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Molecular Sequence Data
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Phylogeny
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Polymerase Chain Reaction
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RNA, Ribosomal, 28S/chemistry/*genetics
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Sequence Alignment
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Support, Non-U.S. Gov't
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Trematoda/classification/*genetics
3.A Clinical Study of Arthroscopic Meniscectomy
Jae Won LEE ; Keun Woo KIM ; Ung Jee CHO
The Journal of the Korean Orthopaedic Association 1994;29(1):119-124
Ninety cases of meniscus injury were treated by arthroscopic meniscetomy between March, 1988 and March, 1992. Eighty four cases were treated by arthroscopic partial, 5 cases by subtotal, and 1 case by total meniscectomy. All cases were followed up for more than 1 year. The results were as follows. 1. The ratio of male to female was 57 to 31, and that of right to left was 52 to 38. 2. There were 41 cases of medial meniscus and 49 cases of lateral meniscus. Longitudinal tears were 35 cases (39%), oblique tears were 20 cases (22%), horizontal tears were 15 cases (17%), and radial tears were 9 cases (10%). There was no difference in the shape of tear between medial and lateral meniscus. 4. The most common associated injury was anterior cruciate ligament tear. 5. The Tapper and Hoover scale was used to record the clinical results, and satisfatory results (exellent and good)were in 86% of cases.
Anterior Cruciate Ligament
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Clinical Study
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Female
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Humans
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Knee
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Male
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Menisci, Tibial
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Tears
4.Repair of large septal perforation by external rhinoplasty approach.
Chul Ung LEE ; Sung Ho KANG ; Hyung Seok LEE ; Kyung Sung AHN
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(6):1232-1236
No abstract available.
Rhinoplasty*
5.A case of cholesterol granuloma cyst.
Chul Ung LEE ; Song Ho KANG ; Chul Won PARK ; Hyung Seok LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(2):371-375
No abstract available.
Cholesterol*
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Granuloma*
6.Identification of parasite DNA in common bile duct stones by PCR and DNA sequencing.
Ji Sun JANG ; Kyung Ho KIM ; Jae Ran YU ; Soo Ung LEE
The Korean Journal of Parasitology 2007;45(4):301-306
We attempted to identify parasite DNA in the biliary stones of humans via PCR and DNA sequencing. Genomic DNA was isolated from each of 15 common bile duct (CBD) stones and 5 gallbladder (GB) stones. The patients who had the CBD stones suffered from cholangitis, and the patients with GB stones showed acute cholecystitis, respectively. The 28S and 18S rDNA genes were amplified successfully from 3 and/or 1 common bile duct stone samples, and then cloned and sequenced. The 28S and 18S rDNA sequences were highly conserved among isolates. Identity of the obtained 28S D1 rDNA with that of Clonorchis sinensis was higher than 97.6%, and identity of the 18S rDNA with that of other Ascarididae was 97.9%. Almost no intra-specific variations were detected in the 28S and 18S rDNA with the exception of a few nucleotide variations, i.e., substitution and deletion. These findings suggest that C. sinensis and Ascaris lumbricoides may be related with the biliary stone formation and development.
Aged
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Aged, 80 and over
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Animals
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Ascaridida/genetics/isolation & purification
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Ascaris lumbricoides/genetics/isolation & purification
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Base Sequence
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Clonorchis sinensis/genetics/isolation & purification
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Common Bile Duct/*parasitology
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DNA, Helminth/*genetics
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DNA, Ribosomal/genetics
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Face/parasitology
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Female
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Gallbladder/parasitology
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Gallstones/*parasitology
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Helminths/genetics/*isolation & purification
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Humans
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Male
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Middle Aged
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Molecular Sequence Data
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Polymerase Chain Reaction/*methods
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RNA, Ribosomal, 18S/genetics
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RNA, Ribosomal, 28S/genetics
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Sequence Alignment
7.Dose Related Neuromuscular Blocking Effects of d-Tubocursrine Chloride in Rabbits .
Byung Ho LEE ; Young Moon HAN ; Se Ung CHON
Korean Journal of Anesthesiology 1980;13(3):244-249
Patients vary markedly in their responses to d-tubocurarine chloride. Despite an attempt to diminish the variation in responses to relaxants by standardizing experimental techniques, anesthetic concentration kept constant, acid-base status kept constant, premedication omitted, dosage calculated in terms of mg/sq meter body surface, the marked variation was found to persist. The dose related neuromuscular blocking effect of d-tubocurarine chloride was investigated using a rabbit common peroneal nerve anterior tibial muscle preparation. All experimental rabbits tracheas were intubated through tracheostomy under general anesthesia with Nembutal 40 mg/kg intravenously. Reapiration was controlled by a Harvard animal respirator. The body temperature was kept at 35-37 degrees C by a thermoblanket. The degree of neuromuscular block following intravenous d-tubocurarine chloride was measured by single twitch response. The common peroneal nerve was stimulated supramaximally using a square waves of 0. 2 msec duration at a frequency of 0.1 Hz, and each stimulus was repeated once every 10 seconds. The ratio of the twitch height was calculated. The results were as follows: 1) No neuromuscular blocking effect was observed with 0.1 mg/kg of intravenous d-tubocu- rarine chloride. 2) 100% of neuromuscular blocking effect was observed with more than 1mg/kg of intravenous d-tubocurarine chloride. This is 5 to 10 times higher than the human dose. 3) Dose related prolonged neuromuscular blocking effect was observed from d-tubocurarine chloride in rabbits.
Anesthesia, General
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Animals
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Body Temperature
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Humans
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Muscle, Skeletal
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Neuromuscular Blockade*
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Pentobarbital
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Peroneal Nerve
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Premedication
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Rabbits*
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Trachea
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Tracheostomy
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Tubocurarine
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Ventilators, Mechanical
8.Sequence comparisons of 28S ribosomal DNA and mitochondrial cytochrome c oxidase subunit I of Metagonimus yokogawai, M. takahashii and M. miyatai.
Soo Ung LEE ; Sun HUH ; Woon Mok SOHN ; Jong Yil CHAI
The Korean Journal of Parasitology 2004;42(3):129-135
We compared the DNA sequences of the genus Metagonimus: M. yokogawai, M. takahashii, and M. miyatai. We obtained 28S D1 ribosomal DNA (rDNA) and mitochondrial cytochrome c oxidase subunit I (mtCOI) fragments from the adult worms by PCR, that were cloned and sequenced. Phylogenetic relationships inferred from the nucleotide sequences of the 28S D1 rDNA and mtCOI gene. M. takahashii and M. yokogawai are placed in the same clade supported by DNA sequence and phylogenic tree analysis in 28S D1 rDNA and mtCOI gene region. The above findings tell us that M. takahashii is closer to M. yokogawai than to M. miyatai genetically. This phylogenetic data also support the nomination of M. miyatai as a separate species.
Animals
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Base Sequence
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Comparative Study
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DNA, Helminth/*chemistry/genetics
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DNA, Mitochondrial/chemistry/genetics
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DNA, Ribosomal/chemistry/genetics
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Electron Transport Complex IV/chemistry/*genetics
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Heterophyidae/classification/enzymology/*genetics
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Molecular Sequence Data
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Phylogeny
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RNA, Ribosomal, 28S/chemistry/*genetics
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Research Support, Non-U.S. Gov't
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Sequence Alignment
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Trematode Infections/*parasitology
9.A Case of Leptomyelolipoma.
Journal of Korean Neurosurgical Society 1979;8(1):115-120
The case of 8 year old boy is presented, in whom huge mass on the lumbosacral region from birth and mild motor weakness of left leg with urinary incontinence. The operative using surgical microscope and pathological findings are discussed and reviewed of literature and a nosological classification of leptomyelolipoma given. The treatment underwent surgical microscope with good result. The importance of the surgical microscope is stressed.
Child
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Classification
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Humans
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Leg
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Lumbosacral Region
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Male
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Parturition
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Urinary Incontinence