• Korean Journal of Environmental Agriculture
• /
• v.1 no.2
• /
• pp.99-104
• /
• 1982

These studies were carried out to investigate the damage of root rot of hop by heptachlor residues in soil at nine farm fields and pot experiment for two years from 1980 to 1981. 1) Pot experiment results indicated that root rot of hop occurred in farm field were caused by heptachlor phytotoxicity. 2) The damage of root rot of the hop was found by heptachlor residues in soil. Hop root in the low concentration of heptachlor was turned to brown mottle, and then rotted. In high concentration, the hop root was decreased in number, blocked in growth, and resulted to greyish change with death. 3) Hop vine damaged by heptachlor was hardened and broken with ease. 4) Heptachlor epoxide which was inferred to be the main cause of hop root rot gave the damage to hop at 0.009 ppm reisdues in soil. 5) The phytotoxicity of heptachlor was proved to last for 10 years or more in this study.

• Journal of Chest Surgery
• /
• v.42 no.1
• /
• pp.96-99
• /
• 2009

We report here on a case of a ruptured sinus of a valsalva aneurysm into the left ventricle with the rupture site communicating with both the left coronary sinus and the noncoronary sinus in a 37-year-old male who presented with symptoms of congestive heart failure. Echocardiography showed a sac-like structure around the sinus of valsalva, an enlarged left ventricle (LV) and severe aortic regurgitation, which all suggested a ruptured sinus of a valsalva aneurysm or an aortic-left ventricular tunnel. The operative findings revealed that both the left coronary sinus and the noncoronary sinus had an opening into the left ventricle. The proximal opening into the LV was closed with bovine pericardium and the aortic root was replaced with a composite graft (a 21 mm St. Jude Epic Supra tissue valve and a 24 mm Hemashild graft) by the modified Bentall procedure. The patient was discharged on the 15th postoperative day, and he was regularly followed up for 2 months. We report on this case due to its rarity and to describe the surgical repair techniques.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.52 no.2
• /
• pp.198-203
• /
• 2007

This study was carried out to obtain basic informations for gene action of quantitative characters including shattering resistance. The parental varieties used for $5{\times}5$ half diallel crosses were 'Yangbaek' and 'Ansan' of normal type, 'Suwon177' and 'Suwon195' of placenta adhesion type (PA) and 'SIG960320-5-1-1' of indehiscent type (ID). PA and ID type are shattering-resistant sesames, and Yangbaek and Ansan are shattering sesames. All the characters were sufficient to the assumption for diallel analysis in this experiment. Over dominance was exhibited by the number of capsules per plant, while partial dominance by plant height, capsule setting stem length, grain yield per plant and shattering rate, complete dominance by the number of branches per plant. Additive effect was higher than dominance in shattering rate. High shattering rate was dominant over low shattering rate. Suwon 195, shattering resistant sesame, showed to have the many recessive genes which reduced the shattering rate of sesame seed. Broad sense heritability for all the characters was more than 0.8. Narrow sense heritability for the number of branches per plant, the number of capsules per plant, grain yield per plant and shattering rate was 0.45 to 0.63, and plant height and capsule setting stem length was more than 0.8.

• Horticultural Science & Technology
• /
• v.29 no.6
• /
• pp.531-538
• /
• 2011

This study was carried out to investigate the influence of defoliation by Marssonina blotch (Diplocarpon mali Harada et Sawamura) on vegetative growth and fruit quality in 'Fuji'/M.9 apple tree. Soluble solid contents decreased when the defoliation percentage by Marssonina blotch was over 10% before the end of September, and fruit weight decreased when percentage of defoliation was over 30%. Fruit red color and starch contents tend to decrease as percentage of defoliation near the fruit increased. Return bloom, fruit weight, and shoot growth the following year tend to decrease as percentage of defoliation increased. Photosynthetic rate of healthy leaves in bourse shoot during the end of September was maintained about $10{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$, effects in increasing fruit growth and soluble solid contents after the end of September. Photosynthetic rates for the damaged leaf, damaged area was over 50% on the leaf surface, while 30% of the photosynthetic rates of healthy leaf are without damage applied with Marssonina blotch at the end of September. The results show that the decrease of fruit quality in defoliation treatments may be caused by the decrease of starch contents in fruit, and that was caused by the photosynthetic rates of leaves near fruit was decreased by Marssonina blotch in the wake of August.

• Journal of Chest Surgery
• /
• v.30 no.7
• /
• pp.713-718
• /
• 1997

Fracture of the sternum has been considered as a serious injury and also associated with major complications such as myocardial, major thoracic vascular, and spinal injury. Retrospective datas from blunt trauma victims admitted to our hospital were analyzed to determine significance of sternal fractures and possible associated injures. 101 sternal fractures by blunt trauma were admitted from january, 1986 to december, 1995. Frequency was about 3.51 olo of the nonpenetrating chest trauma. The ratio of male to female was 1.82 versus 1. Most common cause in the stemal fracture was high decelerating injury(73 cases). Most common fracture site was sternal body(75 cases). Average days of adm ssion were 26 days. Abnormal ECG findings were sinus bradycardia(Teases), complete or incomplete RBBB(6 cases), sinus tachycardia(4 cases), specific S-T change(3 cases), 1st degree A-V block(2 cases), LVH(1 case), PVC(1 case), and Low voltage(1 case). CPK-MB was increased about 32.Lolo of sternal fractures. Except of expired 2 patients, patients were treated with conservative treatment(94 cases) and open reductions & steel wire fixations(5 cases). Complication after operation was wound infection(1 case). Causes of death were 1 hypovolemia and 1 acute respiratory distress syndrome. In conclusion, although sternal fracture is less frequent, and mostly treats with conservative treatment, it shoed be carefully observed because of critical associated injuries.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.38 no.3
• /
• pp.296-302
• /
• 2011

Idiopathic gingival fibromatosisrarely occurs, but frequently recurred after surgical removal. It usually occurs in generalized symmetrical pattern but sometimes in localized unilateral pattern. The localized pattern usually affects the maxillary molar and tuberosity area. This disease usually causes tooth migration, malocclusion, and problems in eating, speech, and esthetics. A boy showed dense gingival fibromatosis localized at primary maxillary right lateral incisor area at the age of 5 years, and his maxillary right lateral incisor become severely displaced at the age of 9 years. He had no medical and hereditary factors relevant to the gingival fibromatosis. However, the dense fibrous tissue was dominant in his labial gingiva of maxillary right incisors. In order to realign the displaced incisors by orthodontic treatment, the dense fibrous tissue covered the defect space between the central incisor and the displaced lateral incisor was surgically removed. The removed specimen was examined by simple immunohistochemical(IHC) array method. IHC array showed increased expression of CTGF, HSP-70, MMP-1, PCNA, CMG2, and TNF-${\alpha}$ in keratinocytes, fibroblasts, endothelial cells, and macrophages of gingival fibromatosis tissue. Therefore, it was suggested that the gingival fibromatosis be caused by the concomitant overexpression of CTGF, HSP-70, MMP-1, PCNA, CMG2, and TNF-${\alpha}$, and resulted in the fibroepithelial proliferation and the inflammatory reaction of gingival tissue.

• Journal of The Korean Society of Inherited Metabolic disease
• /
• v.15 no.2
• /
• pp.87-92
• /
• 2015

Mucopolysaccharidosis (MPS) is an inherited disease entity associated with lysosomal enzyme deficiencies. MPS type 2, also known as Hunter syndrome, has a characteristic morphology primarily involving x-l inked recessive defects and iduronate-2-sulfatase gene mutation. The purpose of this case report is to provide important clues to help pediatricians identify Hunter syndrome patients earlier (i.e., before the disease progresses). A 30-month-old boy showed developmental delay and decreased speech ability. Physical examinations revealed a flat nose and extensive Mongolian spots. Brain magnetic resonance images (MRIs) showed bilateral multiple patchy T2 hyperintense lesions in the periventricular and deep white matter, several cyst-like lesions in the body of the corpus callosum, and diffuse brain atrophy, which were in keeping with the diagnosis. Based on these findings, the patient was suspected of having MPS. In the laboratory findings, although the genetic analysis of IDS (Iduronate-2-sulfatase) did not show any pathogenic variant, the enzymatic activity of IDS was not detected. We could confirm the diagnosis of MPS, because other sulfatases, such as ${\alpha}$-L-iduronidase, were detected in the normal range. Early enzymatic replacement therapy is essential and has a relatively good prognosis. Therefore, early diagnosis should be made before organ damage becomes irreversible, and brain MRIs can provide additional diagnostic clues to help distinguish the disorder.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.19 no.3
• /
• pp.249-256
• /
• 1986

The carp (Cyprinus carpio) used in the experiment were hatched in the spring this year and reared to 5.96g($4.84{\sim}6.55g$) in mean weight in a nursery pond at Daeyon fish farm, Pusan, Korea. The sample fish were exposed to different conditions of total ammonia (TA-N) concentrations 10, 20 and 30ppm and pH 6.5, 7.0, 7.5 and 8.0 at water temperatures 20, 25 and $30^{\circ}C$ for 24, 48 and 72 hours. After the procedure, the gill, liver and kidney of the fish were examined histopathologically. In this experiment, with the rise of water temperature, increase of pH and ammonia concentration, and the extension of exposure time the three organs showed the tendency of apparent abnormal changes such as hypertrophy and necrosis in their tissues. At $20^{\circ}C$ of water temperature gill tissue did not show any abnormality regardless of the change of pH at 10 ppm of ammonia concentration for 24 hours of exposure, but beyond the conditions given above, there occurred hypertrophy and the epithelium of gill lamellae was detached. The detach of gill lamellae epithelium initiated from the proximal part of the gill lamellae then gradually spread toward the uppermost tip. The heavier vacuolation of the liver was observed with the rise of water temperature and pH, and such morbid state in the liver was considered to be the result of edema in the liver tissue. The kidney showed no damage to the renal tubule epithelium at pH 6.5, but it was damaged at pH 8.0 when exposed to 30 ppm ammonia at $20^{\circ}C$ for 24 hours.

• Journal of Chest Surgery
• /
• v.39 no.10 s.267
• /
• pp.775-778
• /
• 2006

Hypertrophic cardiomyopathy is characterized by inappropriate hypertrophy of the myocardium and is associated with various clinical presentations ranging from complete absence of symptoms to sudden, unexpected death. These are caused by dynamic obstruction of the left ventricular outflow tract and surgical approaches were initiated. But, the complete resection of hypertrophied midventricular septum is impossible by standard, transaortic approach, because of narrow vision and limited approach. And it leads to inadequate excision, will leave residual left ventricular out-flow tract obstruction or systolic anterior motion of mitral leaflet, and limit symptomatic improvement and patient's survival. We report a case of extended septal myectomy for hypertrophic cardiomyopathy of mid-septum in a child. The extended septal myectomy was performed by aortotomy and left ventricular apical incision, and made possible the complete resection of mid-ventricular septum, abnormal papillary muscles and chordae. The patient's symptom was improved and the postoperative course was uneventful.

• Journal of The Korean Society of Inherited Metabolic disease
• /
• v.12 no.2
• /
• pp.108-112
• /
• 2012

Glycogen storage disease type III (GSD type III, OMIM #232400) is a rare autosomal recessive disease caused by a deficiency of the glycogen-debranching enzyme (GDE) with a mutation in the AGL gene (OMIM *610860). It is known to be bifunctional enzyme, that is, having two independent catalytic activities; 1,4-${\alpha}$-D-glucan 4-${\alpha}$-D-glycosyltransferase (EC 2.4.1.25) and amylo-1,6-glucosidase (EC 3.2.1.33) that occur at separate active sites on a single polypeptide chain. Most patients with GSD type III usually have symptoms related to decreased glycogenolysis in liver and muscles, such as hepatomegaly, hypoglycemia, failure to thrive, hyperlipidemia, muscle weakness and cardiomyopathy (type IIIa), however some patients show symptoms restricted to liver (type IIIb). GSD type III is diagnosed by enzyme test through liver or muscle biopsy or mutation analysis of the AGL gene. We report the case of GSD type III proven by gene study after liver biopsy, which revealed c.476delA, c.3444_3445insA in exon 6, 27 of AGL gene in Korean patient.