1.RNAi: A Recent Revolutionary Tool for Understanding of Basic Biology.
Dong Kil JUNG ; Young Suk CHO ; Won Kil LEE
Korean Journal of Clinical Microbiology 2007;10(1):1-5
RNA interference (RNAi) is a gene-silencing technology by which small double-stranded RNAs are used to target the degradation of RNA with complementary sequence. RNAi is found in a wide variety of organisms (Caenorhabditis elegans, insects, plants, microorganisms and animals). With RNAi, we have harnessed the gene function to be explored, revolutionized our ability to perform large-scale genetic screens, and even therapeutic potential.
Biology*
;
Insects
;
RNA
;
RNA Interference
;
RNA, Double-Stranded
2.Ultrasonographic Findings of Benign Soft Tissue Tumors.
Ki Sung KIM ; Dong Heon OH ; Tae Gun JUNG ; Yong Kil KIM ; Jung Hyeok KWON
Journal of the Korean Radiological Society 1994;30(5):935-941
PURPOSE: To clarify the chracteristic sonographic features of benign soft tissue tumors and to evaluate the usefulness of sonographic imaging. MATERIALS AND METHODS: We retrospectively reviewed ultrasonographic images of 70 cases in 68 patients with histologically proved benign soft tissue tumors. RESULTS: The tumors included 33 lipomas, 11 hemangiomas. 11 lymphangiomas, 7 neurilemmomas, 4 epidermold cysts, 2 fibromas, 1 mesenchymoma, and 1 myxoma. The SOhographic appearances of the lesions were mainly solid in 53 cases(33 lipomas, 8 hemangiomas, 2 lymphangiomas, 7 neurilemmomas, 2 fibromas and 1 mesenchymoma), mainly cystic in 14 cases(1 hemangioma, 8 lymphangiomas, 4 epidermoid cysts, and 1 myxoma), and mixed in 3 cases(2 hemangiomas and 1 lymphangioma). Although an accurate histologic prediction could not be made in most cases, certain patterns appeared to be characteristic of specific tumor types. 26 cases(78%) of lipoma were seen as lentiform, iso- or hyperechoic, solid mass. Hemangioma had variable appearance and chacteristic calcifications were seen in 3 cases. Unicameral or multiseptated cystic mass with variable thickness of echogenic septa and solid portion was the characteristic finding of lymphangioma. Neurilemmoma showed Iobulated, oval to round, relatively hypoechoic mass with or without internal cystic portion. CONCLUSION: Sonographic evaluation of benign soft tissue tumros is useful in demonstrating the location, size, extent, and internal characteristics of the mass. A relatively confident diagnosis can be made when the characteristic features of the benign soft tissue tumor are present on sonographic imaging.
Diagnosis
;
Epidermal Cyst
;
Fibroma
;
Hemangioma
;
Humans
;
Lipoma
;
Lymphangioma
;
Mesenchymoma
;
Myxoma
;
Neurilemmoma
;
Retrospective Studies
;
Ultrasonography
3.Laryngeal adjustments for Korean stops: acoustic, electromyographicand fiberscopic analysis.
Ki Hwan HONG ; Dong Suk CHON ; Young Jung KIM ; Kil Yang JUNG
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(6):770-782
No abstract available.
Acoustics*
4.Laryngeal adjustments for the Korean stops affricates and fricatives: electromyographic studies.
Ki Hwan HONG ; Dong Suk CHON ; Mi Jung KIM ; Kil Yang JUNG ; Young Ki KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(5):1008-1017
No abstract available.
5.Computer-assisted interpretative reporting system of serum CK and LD isoenzyme tests.
Dae Chul KIM ; Bo Chan JUNG ; Kil Ho CHO ; Kyung Dong KIM ; Chung Sook KIM
Korean Journal of Clinical Pathology 1991;11(2):349-362
No abstract available.
6.Comparison of the results of multistix®-SG and comber-9-Test®RL urine dipstick assay.
Dae Chul KIM ; Kyung Dong KIM ; Bo Chan JUNG ; Chung Sook KIM ; Kil Ho CHO
Yeungnam University Journal of Medicine 1991;8(1):42-52
Two types of urine dipstick assays, Multistix-SG and Comber-9-Test RL, were compared for compatibility, accuracy, specificity and predictive values of a positive and negative test in 501 patients' urine and artificially prepared specimen. We found that the results of semiquantitative tests of Multistix-SG and Comber-9-Test RL performed were statistically similar in patients' specimen. The urinary leukocyte esterase tests of Comber-9-Test RL assays compared with urine sediment microscopy in regard to compatibility, sensitivity, specificity, and predictive values of a positive and negative test 83.7%, 48.1%, 90.3%, 47.4% and 90.1%, respectively. The urinary nitrite tests of Comber-9-Test RL assays compared with urine culture tests, in regard to compatibility, sensitivity, specificity, and predictive values of a positive and negative test were 90.3%, 19.4%, 84.7%, 53.8% and 94.1, respectively. For the urinary protein, the sulfosalicylic acid method was the most sensitive test for any kinds of protein, and Multistix-SG appeared more sensitive than Comber-9-Test RL for the albuminuria. For the urinary bilirubin and glucose, two dipstick assays were similar in their diagnostic efficiency. Finally in the urinary occult blood tests, Comber-9-Test RL assays was more sensitive than Multistix-SG.
Albuminuria
;
Bilirubin
;
Glucose
;
Leukocytes
;
Methods
;
Microscopy
;
Occult Blood
;
Sensitivity and Specificity
;
Urinalysis
7.Evaluation of pneumoreduction in intussusception with sign of frank intestinal obstruction.
Dong Heon OH ; Ok Hwa KIM ; Ki Sung KIM ; Yong Kil KIM ; Jung Hyeok KWON
Journal of the Korean Radiological Society 1993;29(3):553-560
Intussusception is the most common cause of acquired intestinal obstructions during infancy and early childhood. Barium reduction and pneumoreduction have been sued widely as nonsugical method of treatment in radiologic department. In the past, attempts at barium reduction of intussusception were contraindicated in the presence of frank intestinal obstruction, shock, fever, dehydration, bowel perforation, peritonitis and longstanding symptoms. At present, however, there is no agreement on the contraindications, except for shock, peritonitis and bowel perforation. Especially, there is no consensus regarding its application on patient presenting with sign of frank intestinal obstruction. The authors analyzed the effect of pneumoreduction in the intussusception with sign of frank intestinal obstruction. Pneumoreduction was attempted in 53 cases of intussusception with sign of frank intestinal obstruction. Reduction was successful in 43 cases(81%). The mean fluroscopic time was 15.1 minutes and mean maximal pressure was 121.8mmHg in successful reduction. As complications, two cases of bowel perforation were observed, but could be treated surgically without any significant problem. In conclusion, pneumoreduction is a useful substitute for barium reduction in the management of pediatric intussusception with sign of frank intestinal obstruction.
Barium
;
Consensus
;
Dehydration
;
Fever
;
Humans
;
Intestinal Obstruction*
;
Intussusception*
;
Methods
;
Peritonitis
;
Shock
8.Tow Cases of Cerebral Cavernous Hemangiomas in Children.
Jung Keun KIM ; Kwang Kil LEE ; Dong Ik KIM ; Chang Joon KO
Journal of the Korean Neurological Association 1985;3(2):285-290
Recently we experienced two cases of cerebral cavernous hemangioma in children at Pediatric Department of Yonsei Medical School. We are reporting these two cases with literature review.
Child*
;
Hemangioma, Cavernous, Central Nervous System*
;
Humans
;
Schools, Medical
9.Surgical Results of 80 Patients with Growth Hormone-Producing Pituitary Adenomas : Analysis of Outcome and Prognostic Factors.
Jeong Eun KIM ; Hee Won JUNG ; Ho Shin GWAK ; Sun Ha PAEK ; Dong Gyu KIM ; Kil Soo CHOI
Journal of Korean Neurosurgical Society 2000;29(6):754-762
No abstract available.
Humans
;
Pituitary Neoplasms*
10.Breast Lymphoma: A Report of 2 Cases.
Soo Jung LEE ; Jin Wook LEE ; Mi Soo HWANG ; Kil Ho CHO ; Bok Hwan PARK ; Dong Sug KIM
Journal of the Korean Radiological Society 1994;31(4):763-766
The diagnosis of breast lymphoma is a prime consideration when a breast mass develops in a patient with a history of lymphoma either in lymphatic system or at other anatomic sites, with bilateral axillary lymph nodes enlargment. However, the radiologic findings of lymphoma in breast are known as non-specific. Breast lymphoma is extremely rare and it has never been reported in this country. We report two cases of breast lymphoma with mammographic and sonographic findings.
Breast*
;
Diagnosis
;
Humans
;
Lymph Nodes
;
Lymphatic System
;
Lymphoma*
;
Ultrasonography