1.Expression of Bovine Growth Hormone Gene in a Baculovirus, Hyphantria cunea Nuclear Polyhedrosis Virus.
Kap Ju PARK ; Keun Kwang LEE ; Bong Ju KANG ; Sung Chul CHA ; Hyung Hoan LEE
Journal of the Korean Society of Virology 1998;28(2):129-138
Bovine growth hormone (bGH) gene was expressed in an insect spodoptera frugiperda cell line using a Baculovirus, Hyphantria cunea nuclear polyhedrosis virus (HcNPV). The bGH gene in pbGH plasmid was sequenced and amplified by PCR technique with two primers containing NcoI sites. The bGH gene consisted of 654 bp (217 amino acid residues), the 5'-untranslated region of the cloned bGH cDNA contains 56 bp, and the 3'-untranslated region contains 145 bp and two pallindromic regions. The amplified bGH gene DNA fragment (654 bp) was inserted into the NcoI site of the pHcEVII vector, which was named pHcbGH. The pHcbGH transfer vector DNA and the wild type HcNPV DNA were cotransfected into s. frugiperda cells to construct a recombinant virus. Eight recombinant viruses were selected and named HcbGH. One clone, HcbGH-4-1 showed largest plaque size, therefore the recombinant virus was further studied. The multiplication patters of the recombinant HcbGH-4-1 was similar to that of the wild type HcNPV. The bGH gene DNA in the HcbGH-4-1 recombinant was confirmed by Southern lot hybridization. The amount of the bGH (217 amino acid residues, 21 kDa) produced in S. frugiperda cells infected with the HcbGH-4-1 recombinant was approximately 5.5 ng per ml (106 cells) by radioimmunoassay.
Baculoviridae*
;
Cell Line
;
Clone Cells
;
DNA
;
DNA, Complementary
;
Growth Hormone*
;
Insects
;
Nucleopolyhedrovirus*
;
Plasmids
;
Polymerase Chain Reaction
;
Radioimmunoassay
;
Spodoptera
2.A study on the morphology of chin in relation to vertical dysplasia of craniofacial complex.
Bong Keun CHA ; Cheong Hoon SUHR
Korean Journal of Orthodontics 1990;20(1):135-156
This study was undertaken to investigate the difference of chin morphology and mandibular form in relation to different mandibular growth direction. The subject was divided into three group i.e., control group, vertical group, and horizontal group, according to the criteria of Bjork sum, and each group was composed of 15 females and 15 males. Medial axis analysis in addition to the routine cephalometric analysis using P.I.A.S. (personal image analysing system) was carried out to find out the differences of mandibular morphology on each group. The results were as follows: 1. The area of symphysis was larger in horizontal growth group than that of vertical growth group. 2. Protruding chin area was also larger in horizontal growth group than that of vertical growth group. 3. There was a close correlationship between protruding chin area and other form of mandible. 4. Antegonial notch depth and ramus posterior contour depth was deeper in vertical growth group than in horizontal growth group, and antegonial notch depth was more influenced by anterior part of notch than posterior part of notch. 5. Mental medial axis and incisal medial axis length, in relation to corpus medial axis length was larger in vertical growth group than in horizontal growth group.
Axis, Cervical Vertebra
;
Chin*
;
Female
;
Humans
;
Male
;
Mandible
3.The Serum Alpha-antitrypsin Concentration of Coal Workers' Pneumoconiosis Patients.
Bong Suk CHA ; Ho Keun CHUNG ; Jeong Pyo HONG
Korean Journal of Occupational and Environmental Medicine 1990;2(1):34-43
This study was performed to investigate associations between serum alpha(1)-antitrypsin(AAT) concentration and radiological categories of coal workers' pneumoconlosis(CWP), between AAT concentration and pulmonary complications such as tuberculosis and emphysema, and to study associations between AAT concentration and FEV(1.0)% in CWP patients, We classified 254 CWP patients in D Hospital into categories of small opacity profusion. And we selected 86 subjects by with or without emphysematous finding in each categories by proportional stratified sampling method. Semm AAT concentrations were quantkated by single radial immunodiffusion method, and the findings of chest radiographs were evaluated by radilogist. The results were as follows: 1. Serum AAT concentrations were not significantly different among groups of radiological categories of small opacities. 2. Complication of emphysema was associated with smoking habits sigmficantlyl(chi square=12.16, p<0,01). And AAT concentraLion was higher in smokers and ex-smokers than in non-smokers. Serum AAT concentration was significantly higher in the cases with emphysema than in the cdses without emphybema{p<0.01). 3. Serum AAT concentration of the group with active pulmonary tuberculosis was significantly higher than with inactive or without: pulmonary tuberculosis group(p<0.1). 4. Serum AAT concentration of the group with low FEV(1.0)% was significantly higher than with high or normal group(p<0.05).
Anthracosis
;
Coal*
;
Emphysema
;
Humans
;
Immunodiffusion
;
Pneumoconiosis*
;
Radiography, Thoracic
;
Smoke
;
Smoking
;
Tuberculosis
;
Tuberculosis, Pulmonary
5.Relationship between Metabolic Syndrome and MTHFR Polymorphism in Colorectal Cancer.
Bong Su KANG ; Dae Ho AHN ; Nam Keun KIM ; Jong Woo KIM
Journal of the Korean Society of Coloproctology 2011;27(2):78-82
PURPOSE: There have been studies on the relations between metabolic syndrome and colorectal cancer or on the relations between methylenetetrahydrofolate reductase (MTHFR) polymorphism and colorectal cancer, but reports on the relationship between metabolic syndrome, MTHFR polymorphism and colorectal cancer all together are rare. The aim of this study is to find the interrelation between metabolic syndrome and MTHFR polymorphism in colorectal cancer. METHODS: This study investigated 255 colorectal cancer patients (cancer group) who underwent surgery in our hospital from March 2003 to December 2008 and compared those patients to 488 healthy patients (control group). The diagnostic criterion for metabolic syndrome was based on the National Cholesterol Education Program-Adult Treatment Panel III (NCEP ATP III), and the MTHFR 677 polymorphism was analyzed. RESULTS: When colorectal cancer patients and patients in the control group were classified as MTHFR 677 subtypes, there was no difference between the two groups: CC 87 (34.1%), CT 134 (52.6%), and TT 34 (13.3%) for the cancer group and CC 145 (32.4%), CT 238 (53.1%), and TT 65 (14.5%) for the control group. Distributions of MTHFR 677C/T genotype and allele frequencies in the individuals with and without metabolic syndrome in the cancer group showed no differences. Moreover, we could find no differences in distributions of MTHFR 677C/T genotypes in the clinical and the biomedical variables of individuals with and without metabolic syndrome in the cancer group. CONCLUSION: Our results show no relation between metabolic syndrome and MTHFR polymorphism in colorectal cancer. However, a further prospective study, based on a precise diagnostic criterion for metabolic syndrome, is needed.
Adenosine Triphosphate
;
Cholesterol
;
Colorectal Neoplasms
;
Gene Frequency
;
Genotype
;
Humans
;
Methylenetetrahydrofolate Reductase (NADPH2)
6.Coronary Angiographic Features and Clinical Significance of Inferior ST segment Elevation during Acute Anterior Myocardial Infarction.
Kwang Soo CHA ; Bong Keun KIM ; Soo Hoon LEE ; Tae Ho PARK ; Moo Hyun KIM ; Young Dae KIM ; Jong Seong KIM
Korean Circulation Journal 2000;30(7):833-840
BACKGROUND AND OBJECTIVES: Inferior ST elevation during anterior acute myocardial infarction(AMI) was not widely investigated. We investigated the frequency, causes, angiographic and clinical significance of simultaneous precordial and inferior ST elevation. MATERIALS AND METHOD: We compared clinical, electrocardiographic and angiographic features of 49 patients with anterior AMI according to the presence(group A) or absence(group B) of inferior ST elevation. Results : 1) ST segment elevation in inferior leads was found in 19(21%) of 89 patients with anterior AMI. The sum of ST elevation in precordial leads and lateral limb leads was smaller in group A than in group B(174 vs 248 mV, 01 vs 57 mV, respectively). 2) Wrapped left anterior descending artery(LAD)(94% vs 26%), 2-vessel disease(50% vs 19%), and collaterals to inferior wall(17% vs 0%) were more common in group A than in group B. Occlusion of middle or distal LAD(83% vs 58%) and patent diagonal or septal branches proximal to occlusion site(21 vs 10) were also more common in group A than in group B. 3) By left ventriculogram, anterolateral involvement was lower(38% vs 82%) and diaphragmatic involvement higher(56% vs 11%) in group A than in group B. 4) The two groups did not differ regarding cardiac enzymes and left ventricular ejection fraction. CONCLUSION: Inferior ST elevation during anterior AMI results from a smaller mass of ischemic anterolateral myocardium combined with simultaneous inferior wall ischemia (i.e., a middle or distal occlusion of wrapped LAD) or multivessel disease. In patients with occlusion of wrapped LAD, deterioration of ventricular function is not worse than in anterior AMI without inferior ST elevation.
Electrocardiography
;
Extremities
;
Humans
;
Ischemia
;
Myocardial Infarction*
;
Myocardium
;
Stroke Volume
;
Ventricular Function
7.Tongue Growth during Prenatal Development in Korean Fetuses and Embryos.
Soo Jeong HONG ; Bong Geun CHA ; Yeon Sook KIM ; Suk Keun LEE ; Je Geun CHI
Journal of Pathology and Translational Medicine 2015;49(6):497-510
BACKGROUND: Prenatal tongue development may affect oral-craniofacial structures, but this muscular organ has rarely been investigated. METHODS: In order to document the physiology of prenatal tongue growth, we histologically examined the facial and cranial base structures of 56 embryos and 106 fetuses. RESULTS: In Streeter's stages 13-14 (fertilization age [FA], 28 to 32 days), the tongue protruded into the stomodeal cavity from the retrohyoid space to the cartilaginous mesenchyme of the primitive cranial base, and in Streeter's stage 15 (FA, 33 to 36 days), the tongue rapidly swelled and compressed the cranial base to initiate spheno-occipital synchondrosis and continued to swell laterally to occupy most of the stomodeal cavity in Streeter's stage 16-17 (FA, 37 to 43 days). In Streeter's stage 18-20 (FA, 44 to 51 days), the tongue was vertically positioned and filled the posterior nasopharyngeal space. As the growth of the mandible and maxilla advanced, the tongue was pulled down and protruded anteriorly to form the linguomandibular complex. Angulation between the anterior cranial base (ACB) and the posterior cranial base (PCB) was formed by the emerging tongue at FA 4 weeks and became constant at approximately 124degrees-126degrees from FA 6 weeks until birth, which was consistent with angulations measured on adult cephalograms. CONCLUSIONS: The early clockwise growth of the ACB to the maxillary plane became harmonious with the counter-clockwise growth of the PCB to the tongue axis during the early prenatal period. These observations suggest that human embryonic tongue growth affects ACB and PCB angulation, stimulates maxillary growth, and induces mandibular movement to achieve the essential functions of oral and maxillofacial structures.
Adult
;
Axis, Cervical Vertebra
;
Embryonic Structures*
;
Fetus*
;
Humans
;
Mandible
;
Maxilla
;
Mesoderm
;
Parturition
;
Physiology
;
Skull Base
;
Tongue*
8.Transradial Stenting of an Anomalous Right Coronary Artery Originating from the Left Sinus of Valsalva.
Kwang Soo CHA ; Dong Joo KEUM ; Hyung Ryul PARK ; Bong Keun KIM ; Moo Hyun KIM ; Young Dae KIM ; Jong Seong KIM
Korean Circulation Journal 1998;28(12):2056-2060
Anomalous right coronary artery arising from the left sinus of Valsalva is rare, but not protected from ather-osclerotic disease. Major factor determining successful angioplasty is the selection of the appropriate guiding catheter to provide optimal coaxial backup support. We report the first case of successful transradial stenting of an anomalous right coronary artery originating from the left sinus of Valsalva.
Angioplasty
;
Catheters
;
Coronary Vessels*
;
Sinus of Valsalva*
;
Stents*
9.Clinical Considerations of the Surgical Treatments of the Pressure Sore.
Keun Cheol LEE ; Joo Bong MOON ; Yong Seok KWON ; Byung Hoon CHA ; Seok Kwun KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2007;34(5):574-579
PURPOSE: The number of sore patients are increasing steadily, especially in old ages, chronic disease and paralytic patients. Most of patients need to surgical treatment. The aim of this paper is to assess clinical analysis of surgical treatment and to consider operative methods, complications, and recurrences. METHODS: We reviewed the data from 82 consecutive patients with 101 pressure sores from March 2003 to May 2006 to discuss the occurrence rate and recurrence rate according to the site on the basis of the presence or absence of paraplegic and its etiology-the patients were categorized into three diagnostic groups: traumatic paraplegics(TP), nontraumatic paraplegics (NTP), and nontraumatic nonparaplegics(NTNP). We examined the sites and sizes of each lesions, patient's state, primary causes of pressure sore, operative methods as each sites and groups, occurrence of complications and recurrences on each groups. RESULTS: In 82 patients, 52 patients were male, 30 patients were female. The male to female ratio was 1.7 :1. Mean age was 55.8 years. 27 patients were in TP group, 35 in NTP group, and 20 in NTNP group, respectively. The common site of sore were sacral area (50.5%), greater trochanteric area(15.8%) and ischial area(13.9%). In each group, incidence rate of recurrence and complication were 11.1%, 40.7% in TP, 5.7%, 5.7% in NTP and 15%, 45% in NTNP. CONCLUSION: Surgeons must consider the general condition of the patient and possibility of recurrence and returning of daily life. We propose that cutaneous flap, fasciocutaneous flap or skin graft as well as musculocutaneous flap be useful to repair of sore site as each patient's state.
Chronic Disease
;
Female
;
Femur
;
Humans
;
Incidence
;
Male
;
Myocutaneous Flap
;
Pressure Ulcer*
;
Recurrence
;
Skin
;
Transplants
10.Anomalous Origin of the Left Circumflex Coronary Artery: A Report of 2 Cases and Echocardiographic Features.
Kwang Soo CHA ; Hyeong Kweon KIM ; Bong Keun KIM ; Byung Soo KIM ; Moo Hyun KIM ; Jong Seong KIM
Journal of the Korean Society of Echocardiography 1997;5(2):172-179
Anomalous origin of the left circumflex coronary artery(LCx) from the right sinus of Valsalva is the most common coronary anomaly and, generally, is considered to be benign. Nevertheless, myocardial infarction or sudden death in young patients with this coronary anomaly has infrequently been described. The LCx arises from the right sinus of Valsalva or proximal right coronary artery, courses posterior to the aorta to enter the left atrioventricular groove, and provide branches to the left lateral wall of heart. Transthoracic or transesophageal echocardiography may provide a useful diagnostic clue although coronary angiography is the standard diagnostic method. We report 2 cases of anomalous origin of the LCx from right aortic sinus with typical echocardiographic images.
Aorta
;
Coronary Angiography
;
Coronary Vessels*
;
Death, Sudden
;
Echocardiography*
;
Echocardiography, Transesophageal
;
Heart
;
Humans
;
Myocardial Infarction
;
Sinus of Valsalva