1.T Cell Epitope Analysis of Structural Protein of Adenovirus.
Jae Won HWANG ; Mi Hyung KIM ; Kil Hyoun KIM
Korean Journal of Immunology 1998;20(4):435-442
Thelper (Th) cells play a pivotal role in the regulation of immune responses. Since Th epitopes in adenovirus have not yet been defined, in this study, it was attempted to search for Th epitopes of adenovirus antigens that are restricted by MHC class II (H-2E). Among candidate viral proteins to be screened for Th epitopes, structural protein was selected, since they induced strong IL-2 release from adenovirus immune lyrnph node (LN) cells and the presence of E1 protein, which contains immunodominant cytotoxic T lymphocyte epitopes, did not potentiate the T cell responses. To confirm the presence of Th epitopes in the structural protein, virions were trypsinized and the resulting polypeptides whose molecular weights were lower than 5,000 were fractionated by HPLC. Some of the HPLC fraction turned out to induce LN cell proliferation. Ten synthetic peptides were designed as candidate Th epitopes from the primary amino acid sequences of adenovirus hexon and penton protein which are major constituents of the virion. The selected sequences share the common features of other known H-2E' binding ligands. Among these ten synthetic peptides, peptide of hexon protein amino acid residue 709-721 induced noticeable proliferation of LN cells from preimmune mice, and also able to induce IL-2 secretion from adenovirus-specific T hybridomas, suggesting that the peptide was the most immunodominant Th epitope. Hexon protein 221-233 and hexon protein 676-688 are considered as epitopes also. This study revealed three epitope sequences from adenovirus structural protein that are presented by class II MHC, H-2E.
Adenoviridae*
;
Amino Acid Sequence
;
Animals
;
Cell Proliferation
;
Chromatography, High Pressure Liquid
;
Epitopes
;
Epitopes, T-Lymphocyte*
;
Hybridomas
;
Interleukin-2
;
Ligands
;
Mice
;
Molecular Weight
;
Peptides
;
Trypsin
;
Viral Proteins
;
Virion
2.Clinical evaluation of Borrmann type 4 gastric cancer.
Dae Yong HWANG ; Jae Gahb PARK ; Jin Pok KIM
Journal of the Korean Cancer Association 1991;23(2):291-298
No abstract available.
Stomach Neoplasms*
3.Solar Urticaria: A Case Report.
Jae Joon LEE ; Sun Wook HWANG ; Young Pio KIM
Korean Journal of Dermatology 1985;23(1):63-66
We herein described a 27 year-old male who has been suffering from pruritic erythematous wheal and flare on sun-exposed areas, especially the midback for the past, ten months. The action spectrum of this patient was between 320 and 400 nm, .Passive and reverse passive transfer tests were negative. According to the classification by Harber et al, the current case seemed to belong to type II.
Adult
;
Classification
;
Humans
;
Intradermal Tests
;
Male
;
Urticaria*
4.Correction: Characteristics of Pediatric Pancreatitis on Magnetic Resonance Cholangiopancreatography.
Jae Yeon HWANG ; Hye Kyung YOON ; Kyung Mo KIM
Pediatric Gastroenterology, Hepatology & Nutrition 2015;18(3):216-216
The errors were discovered after publication: missing references and missing words.
5.Application of a New Colostomy Device in Incontinent Dog Model.
Myeung Kook LIM ; Jae Hwang KIM ; Min Chul SHIM
Journal of the Korean Society of Coloproctology 1998;14(3):439-446
BACKGROUND: Recently developed electrically stimulated gracilis neosphicter or artificial sphincter is quite a promising trial in fecal incontinence However, surgical technique is not simple, the devices are expensive and only specialists can perform the procedures successfully. The aim of this study is to evaluate the efficacy of a newly developed simple silicon device in incontinent dog model. METHODS: A New Colostomy Device (NCD; US Patent No. 5,569,216) for fixing in the stoma or rectum of human body, includes an internal balloon, a ring figured extemal balloon surrounding the internal balloon, a connecting tube disposed under the both infernal and external balloons and supply tube containing a pair of air passages and an enema fluid passage. It is designed to be inserted into the rectum and is held in place by an inflatable external balloon and drains irrigated fecal matter through a thin collapsible connecting tube which exist in the anal canal. Six mongrel dog with 22~26 kg of body weight were prepared. Anal incontinence was made by bilateral severing of the internal and external sphincters and puborectalis muscle under the general anesthesia. Marlex mesh ring was applied to the anal canal as Thiersch wire for the prevention of NCD expulsion in straining. After then, NCD with 2.5 cm of luminal diameter was inserted to the rectum proximal to the Malex mesh ring. Daily irrigation and evacuation was done with 800~1000 cc of tepid water in each dogs. Daily food contained 30 gm of Psyllium dextrose. RESULTS: Initially 6 dogs were observed for 7 days. Daily irrigation made evacuation of fecal matter well in each dogs. There was no prolapse of device through the anal orifice. Anoscopic examination after 7 days showed no rectal and anal mucosal injury. Two dogs were kept for 40 days as same manner. Sometimes spontaneous bowel movement without water irrigation was noted when the stool were loose. Weelky anoscopic examination revealed no evidence of mucosal injuries for 40 days also. There was no septic or other complication. CONCLUSION: NCD evacuated fecal matter well enough to empty the rectum in all incontinence dog model. Adequate sized NCD could be used for clinical trials in selected incontinence patients.
Anal Canal
;
Anesthesia, General
;
Animals
;
Body Weight
;
Colostomy*
;
Dogs*
;
Enema
;
Fecal Incontinence
;
Glucose
;
Human Body
;
Humans
;
Phenobarbital
;
Polypropylenes
;
Prolapse
;
Psyllium
;
Rectum
;
Silicones
;
Specialization
;
Water
6.Aneurysm of Splenic Artery: A Case Report.
Huck Dong KIM ; Su Jin YOO ; Jae Hwang PARK
Journal of the Korean Society of Emergency Medicine 1999;10(3):499-503
Aneurysm of the splenic artery are the third most common intra-abdominal aneurysm, following aneurysms of the infrarenal aorta and iliac arteries. Splenic artery aneurysms (SAA) are the most frequent visceral artery aneurysms and account for more than two thirds of all lesions. Incidence of SAA are rare clinical entities(0.01-0.2%) that carry risk of rupture and fatal hemorrhage(35-100%). Fibroblastic dysplasia and atherosclerosis is fecund in the majority, and the fact that these aneurysms developes more commonly in female. Most patients are asymptomatic and the diagnosis is generally made incidentally. The treatment of patient with known SAA is dictated by several factors, including location, age, sex, present of symptom, size, pregnancy. We report ruptured splenic artery aneurysm with hemoperitoneum and review of the literature.
Aneurysm*
;
Aorta
;
Arteries
;
Atherosclerosis
;
Diagnosis
;
Female
;
Fibroblasts
;
Hemoperitoneum
;
Humans
;
Iliac Artery
;
Incidence
;
Pregnancy
;
Rupture
;
Splenic Artery*
7.Acute Pulmonary Mycetoma Due to Candida albicans in AML patient.
Jae Kyo LEE ; Mi Soo HWANG ; Mi Jin KIM
Yeungnam University Journal of Medicine 1995;12(1):135-140
Acute cavitating pulmonary infection with a mycetoma is sometimes occur in immunocompromised patient. Most mycetoma lesions are due to Aspergillus species, and lesion caused by Candida species is rare. So we report an experienced case that pulmonary and rib infection caused by Candida species-'in -AML patient and complete remission with previous reports.
Aspergillus
;
Candida albicans*
;
Candida*
;
Candidiasis
;
Humans
;
Immunocompromised Host
;
Lung Diseases, Fungal
;
Mycetoma*
;
Ribs
8.Anal pressure in hemorrhoids.
Jae Hwang KIM ; Min Chul SHIM ; Koing Bo KWUN
Journal of the Korean Society of Coloproctology 1993;9(3):213-222
No abstract available.
Hemorrhoids*
9.Diagnosis of a Bleeding Meckel's Diverticulum Using (99m)Technetium Pertechnetate Scanning.
Young Soo HUH ; Jae Hwang KIM ; Koing Bo KWUN
Yeungnam University Journal of Medicine 1987;4(1):129-132
Two cases of Bleeding Meckel's Diverticulum Using (99m)Technetium-Pertechnetate Scanning are presented. (99m)TC-pertechnetate was used in the diagnosis of Meckel's Diverticulum by Jewette et al in 1970 for the first time. The affinity of this isotope for the parietal cell of the gastric mucosa makes it ideal for delincating ectopic gastric tissue. It noninvasiveness can be used in early screening test of occult gastrointestinal bleeding in pediatric age group.
Diagnosis*
;
Gastric Mucosa
;
Hemorrhage*
;
Humans
;
Mass Screening
;
Meckel Diverticulum*
;
Rabeprazole
;
Sodium Pertechnetate Tc 99m*
10.Characteristics of Magnetic Resonance(M.R.) and Comprehension of its Imaging Mechanism.
Jae Chun CHANG ; Mi Soo HWANG ; Son Yong KIM
Yeungnam University Journal of Medicine 1987;4(1):1-15
Magnetic resonance (MR) is rapidly emerging technique that provides high quality images and potentially provides much more diagnostic information than do conventional imaging modalities. MRI is conceptually quite different from currently used imaging methods. The complex nature of MRI allows a great deal of flexibility in image production and available information, and key points are as follows. 1. MR offers a non-invasive technique with which to generate in vivo human images without ionizing radiation and with no known adverse biological effects. 2. Imaging mechanism of MRI is quite different from conventional imaging modality and for more accurate diagnostic application, It is necessary for physician to understand imaging mechanism of MRI 3. M.R. makes available basic chemical parameters that may provide to be useful for diagnostic medical imaging and more specific pathophysiologic information which are not available by alternate techniques. 4. M.R. can be produced by number of different methods. This flexibility allows the imaging technique to be applicated for particular clinical purpose. Multiplanar and three dimensional imaging may extend the imaging process beyond the single section available with current CT. 5. Future directions include efforts to; a. Further development of hard ware b. More fastening scan time c. Respiratory and cardiac gated imaging d. Imaging of additional nuclei except hydrogen. e. Further development of contrast media f. MR in vivo spectroscopy g. Real time MR imaging
Comprehension*
;
Contrast Media
;
Diagnostic Imaging
;
Humans
;
Hydrogen
;
Magnetic Resonance Imaging
;
Pliability
;
Radiation, Ionizing
;
Spectrum Analysis