1.Cloning of the Form I-antigen Genes from Shigella sonnei KNIH104.
Hyoung Kyun OH ; Young Chang KIM ; Jai Yun LIM ; Na Gyong LEE ; Yong Soo BAE ; Kwang Jun LEE
Journal of the Korean Society for Microbiology 1997;32(2):161-166
Shigella sonnei KNIH104S, which was selected by Korean National Institute of Health, expresses form I-antigen as a somatic antigen. In this study, we cloned the genes responsible for form I-antigen synthesis from S. sonnei KNIH104S. A Sau3AI-generated cosmid library of S. sonnei KNIH104S plasmids were transfected into E. coli LE392 and transfectants were tested for agglutination with antiserum against S. sonnei form I-antigen. A clone, JH222, showing the strongest agglutination activity was chosen for further analysis. A recombinant cosmid, pJH222, was isolated from the strain JH222 and retransfected into E. coli LE392. All of the transfectants agglutinated with antiserum against form I-antigen, indicating that pJH222 carried the genes required for S. sonnei form I-antigen synthesis. Restriction analysis of pJH222 revealed a 38 kb insert, which was confirmed by Southern hybridization analysis to be present on a large plasmid of S. sonnei KNIH104S.
Agglutination
;
Clone Cells*
;
Cloning, Organism*
;
Cosmids
;
Plasmids
;
Shigella sonnei*
;
Shigella*
2.Korean Society of Gastrointestinal Endoscopy (KSGE) Guidelines for Credentialing and Granting Previleges for Capsule Endoscopy.
Yun Jeong LIM ; Jeong Seop MOON ; Dong Kyung CHANG ; Byung Ik JANG ; Hoon Jai CHUN ; Myung Gyu CHOI
Korean Journal of Gastrointestinal Endoscopy 2008;37(6):393-402
Capsule endoscope is self-contained videoendoscopy device that transmit images of the gastrointestinal tract to an external receiver. Capsule endoscopy has become a very important tool for diagnosing of small bowel disorders. Upcoming capsule endoscopy techniques for the investigation of esophageal, stomach, and colon may render it promising technique for these organs as well. This document is intended to provide the principles by which credentialing organizations may create practical guidelines for granting privileges to perform capsule endoscopy. KSGE recommends that the use of capsule endoscopy be limited to practitioners already competent and privileged to perform standard upper and lower endoscopy and who have extensive experience viewing gastrointestinal mucosa. KSGE recommends additional specific training in capsule endoscopy as well as review of the 20 procedures to verify competence. KSGE also admitted formal fellowship training having a familiarity with the hardware and software systems and interpretation of the at least 10 cases under the supervision of professor in capsule endoscopy during GI fellowship.
Capsule Endoscopes
;
Capsule Endoscopy
;
Colon
;
Credentialing
;
Endoscopy
;
Endoscopy, Gastrointestinal
;
Fellowships and Scholarships
;
Financing, Organized
;
Gastrointestinal Tract
;
Mental Competency
;
Mucous Membrane
;
Organization and Administration
;
Recognition (Psychology)
;
Stomach
3.Application of Artificial Intelligence in Capsule Endoscopy: Where Are We Now?.
Youngbae HWANG ; Junseok PARK ; Yun Jeong LIM ; Hoon Jai CHUN
Clinical Endoscopy 2018;51(6):547-551
Unlike wired endoscopy, capsule endoscopy requires additional time for a clinical specialist to review the operation and examine the lesions. To reduce the tedious review time and increase the accuracy of medical examinations, various approaches have been reported based on artificial intelligence for computer-aided diagnosis. Recently, deep learning–based approaches have been applied to many possible areas, showing greatly improved performance, especially for image-based recognition and classification. By reviewing recent deep learning–based approaches for clinical applications, we present the current status and future direction of artificial intelligence for capsule endoscopy.
Artificial Intelligence*
;
Capsule Endoscopy*
;
Classification
;
Diagnosis
;
Endoscopy
;
Specialization
4.Antibody-dependent cell-mediated cytotoxicity against FRTL-5 cells in korean postpartum thyroiditis.
Hyun Chul LEE ; Kwan Woo LEE ; Kyung Rae KIM ; Eun Jig LEE ; Kwang Jin AHN ; Jai Hee JUNG ; Yun Sok CHUNG ; Mi Rin KIM ; Hyeon Man KIM ; Sung Kil LIM ; Kap Bum HUH
Journal of Korean Society of Endocrinology 1993;8(3):296-302
No abstract available.
Postpartum Period*
;
Postpartum Thyroiditis*
5.A Case of Primary Pulmonary Hypertension Diagnosed in Puerperium.
Sun Hye JUNG ; Yun Kyung CHO ; Hwa Young LEE ; Yu Lee KIM ; In Jai KIM ; Sang Wook LIM ; Dong Hoon CHA ; Sang Jong LEE
Journal of the Korean Society of Echocardiography 2003;11(1):46-51
Primary pulmonary hypertension is a condition characterized by sustained elevations of pulmonary artery pressure without demonstrable cause. It is incurable and progressive clinical entity. The incidence has been estimated at approximately 1 to 2 cases per million people in the general population. The maternal mortality of primary pulonary hypertension in pregnancy was said to be 30% and the first month after delivery represents the period of highest risk. We experienced a 27-year-old women with primary pulmonary hypertension diagnosed in postpartum period. She was transferred from the department of obstetrics to internal medicine due to dyspnea on the first day of postpartum. She was diagnosed by perfusion lung scan, chest CT and confirmed by echocardiography. This diagnosis were supported by findings of pulmonary angiogram and cardiac catheterization. Initially she was treated with diuretics, aspirin and anticoagulant therapy, and as a result of the treatment, her symptoms improved. However after 8months has elapsed, exertional dyspnea was worsening. Thus she was treated with calcium channel blocker, aspirin and diuretics and was followed at 1 month interval on the outpatient clinics.
Adult
;
Ambulatory Care Facilities
;
Aspirin
;
Calcium Channels
;
Cardiac Catheterization
;
Cardiac Catheters
;
Diagnosis
;
Diuretics
;
Dyspnea
;
Echocardiography
;
Female
;
Humans
;
Hypertension
;
Hypertension, Pulmonary*
;
Incidence
;
Internal Medicine
;
Lung
;
Maternal Mortality
;
Obstetrics
;
Perfusion
;
Postpartum Period*
;
Pregnancy
;
Pulmonary Artery
;
Tomography, X-Ray Computed
6.Rare Form of Schwannoma as a Purely Hemorrhagic Cystic Tumor Located in an Intermuscular Plane.
Joo Hee LIM ; Jae Chan SHIM ; Byung Ho YOON ; Yun Kyung KANG ; Kyoung Eun LEE ; Ho Kyun KIM ; Ghi Jai LEE ; Jung Ho SUH
Investigative Magnetic Resonance Imaging 2017;21(1):38-42
Schwannomas are mostly solid tumors, some of which may contain cystic degenerations or hemorrhages. However, a schwannoma seen as a purely hemorrhagic cystic tumor is very rare. A 63-year-old woman was referred to the hospital due to a slow-growing mass (present for about 5 years) on her right thigh. She complained about vague pain but without neurologic symptoms such as numbness or tingling sensations. MR images showed an oval lesion with defined margins surrounded by the rectus femoris, vastus lateral, and the vastus intermedius. It was characterized as a multilocular cystic lesion composed of hemorrhagic fluid. In addition, the benign hemorrhagic cystic lesion was differentially diagnosed by radiological techniques as a hemorrhagic ganglion cyst. The lesion was surgically excised and, based on pathological features, was diagnosed as being a schwannoma. We report a purely hemorrhagic cystic schwannoma located in an intermuscular plane.
Female
;
Ganglion Cysts
;
Hemorrhage
;
Humans
;
Hypesthesia
;
Magnetic Resonance Imaging
;
Middle Aged
;
Neurilemmoma*
;
Neurologic Manifestations
;
Quadriceps Muscle
;
Sensation
;
Thigh
7.Rare Form of Rheumatoid Nodule around Ischial Tuberosity Mimicking Ischiogluteal Bursitis.
Joo Hee LIM ; Jae Chan SHIM ; Byung Ho YOON ; Yun Kyung KANG ; Kyoung Eun LEE ; Ho Kyun KIM ; Ghi Jai LEE ; Jung Ho SUH
Investigative Magnetic Resonance Imaging 2017;21(2):97-101
We are reporting about a case of a rheumatoid nodule, beneath the ischial tuberosity, mimicking ischiogluteal bursitis. Rheumatoid nodules are frequently seen, at the subcutaneous soft tissues of repetitive mechanical irritation points, and prominent bones. There have been no reported cases of rheumatoid nodules, extending just beneath the ischial tuberosity bone. A 68-year-old woman with a seven-year history of rheumatoid arthritis, suffered for six months, from right buttock swelling and discomfort in seating. A cystic lesion postero-inferior to the ischial tuberosity, was noted in the MRI scan, which was thought to be ischiogluteal bursitis, because of its characteristic location and appearance. Histopathologic analysis and gross findings on the operation, revealed no evidence of bursitis.
Aged
;
Arthritis, Rheumatoid
;
Bursitis*
;
Buttocks
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Rheumatoid Nodule*
8.Rare Form of Rheumatoid Nodule around Ischial Tuberosity Mimicking Ischiogluteal Bursitis.
Joo Hee LIM ; Jae Chan SHIM ; Byung Ho YOON ; Yun Kyung KANG ; Kyoung Eun LEE ; Ho Kyun KIM ; Ghi Jai LEE ; Jung Ho SUH
Investigative Magnetic Resonance Imaging 2017;21(2):97-101
We are reporting about a case of a rheumatoid nodule, beneath the ischial tuberosity, mimicking ischiogluteal bursitis. Rheumatoid nodules are frequently seen, at the subcutaneous soft tissues of repetitive mechanical irritation points, and prominent bones. There have been no reported cases of rheumatoid nodules, extending just beneath the ischial tuberosity bone. A 68-year-old woman with a seven-year history of rheumatoid arthritis, suffered for six months, from right buttock swelling and discomfort in seating. A cystic lesion postero-inferior to the ischial tuberosity, was noted in the MRI scan, which was thought to be ischiogluteal bursitis, because of its characteristic location and appearance. Histopathologic analysis and gross findings on the operation, revealed no evidence of bursitis.
Aged
;
Arthritis, Rheumatoid
;
Bursitis*
;
Buttocks
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Rheumatoid Nodule*
9.Survey of Endoscope Reprocessing in Korea.
Jeong Bae PARK ; Jae Nam YANG ; Yun Jeong LIM ; Ja Seol KOO ; Jae Young JANG ; Sang Hoon PARK ; Su Jin HONG ; Sang Woo KIM ; Hoon Jai CHUN
Clinical Endoscopy 2015;48(1):39-47
BACKGROUND/AIMS: There is a growing emphasis on quality management in endoscope reprocessing. Previous surveys conducted in 2002 and 2004 were not practitioner-oriented. Therefore, this survey is significant for being the first to target actual participants in endoscope reprocessing in Korea. METHODS: This survey comprised 33 self-filled questions, and was personally delivered to nurses and nursing auxiliaries in the endoscopy departments of eight hospitals belonging to the society. The anonymous responses were collected after 1 week either by post or in person by committee members. RESULTS: The survey included 100 participants. In the questionnaire addressing compliance rates with the reprocessing guideline, the majority (98.9%) had a high compliance rate compared to 27% of respondents in 2002 and 50% in 2004. The lowest rate of compliance with a reprocessing procedure was reported for transporting the contaminated endoscope in a sealed container. Automated endoscope reprocessors were available in all hospitals. Regarding reprocessing time, more than half of the subjects replied that reprocessing took more than 15 minutes (63.2%). CONCLUSIONS: The quality management of endoscope reprocessing has improved as since the previous survey. A national survey expanded to include primary clinics is required to determine the true current status of endoscope reprocessing.
Anonyms and Pseudonyms
;
Committee Membership
;
Compliance
;
Endoscopes*
;
Endoscopy
;
Humans
;
Korea
;
Nurses' Aides
;
Surveys and Questionnaires
10.Fatal Delayed Coronary Artery Perforation After Coronary Stent Implantation.
Sang Hoon KIM ; Jae Youn MOON ; Jung Hoon SUNG ; In Jai KIM ; Sang Wook LIM ; Dong Hun CHA ; Seung Yun CHO
Korean Circulation Journal 2012;42(5):352-354
Most type I and II perforations are predominately caused by hydrophilic and stiff wires, often presented in the delayed form, and do not require pericardial drainage or surgical interventions. However, we report a type III delayed coronary artery perforation at the site of stent implantation after intervention without any evidence of immediate perforations. To the best of our knowledge, this is the first case report of angiographic documentation and treatment of delayed coronary perforation at the site of stent, presented as a cardiac arrest.
Angioplasty, Balloon, Coronary
;
Cardiac Tamponade
;
Coronary Vessels
;
Drainage
;
Drug-Eluting Stents
;
Heart Arrest
;
Stents