1.Biocontrol Effect of Gliocladium virens G1 and Soil Amendment on Astragal Stem Rot Caused by Rhizoctonia solani.
Mycobiology 2000;28(4):180-184
In order to find an environment-friendly method to suppress astragal stem rot caused by the isolates of Rhizoctonia solani AG 1 and AG 4, we tested an antagonistic fungus Gliocladium virens G1 was evaluated as a biocontrol agent and estimated inorganic compounds and organic materials were tested for their effect of the disease suppression. G. virens G1 effectively inhibited mycelial growth in a dual culture and caused mycelial lysis in the culture filtrate. No adverse effect was observed when examined for seed germination and seedling growth. Promoted seedling growth was observed with the seed treatment. Seeds of astragal plant were germinated higher in the sterile soil than the natural soil. Of 14 inorganics tested, alum, aluminum sulfate and calcium oxide significantly suppressed the mycelial growth and sclerotial germination. Milled pine bark and oak sawdust also suppressed the mycelial growth. Soil amended with 1% of G. virens G1 composted with pine bark (w/v) significantly controlled astragal stem rot in the glasshouse experiments.
Aluminum
;
Calcium
;
Fungi
;
Germination
;
Gliocladium*
;
Hypocrea*
;
Plants
;
Rhizoctonia*
;
Seedlings
;
Soil*
2.A Case of Congenital Choanal Atresia.
Jung Hea KIM ; Bong Yong HAN ; Koo Chung JUNG ; E Boong KWON ; Il Ahn SUNG
Journal of the Korean Pediatric Society 1983;26(7):704-705
No abstract available.
Choanal Atresia*
3.Cultural Characteristics of Veiled Lady Mushroom, Dictyophora spp..
Jong Chun CHEONG ; Gwang Po KIM ; Han Kyoung KIM ; Jeong Sik PARK ; Bong Koo CHUNG
Mycobiology 2000;28(4):165-170
This study was carried out to obtain the basic data for artificial culture of veiled lady mushroom (Dictyophora spp). The optimal conditions for the mycelial growth were 25degrees C and pH 5.0 for all isolates except the optimal temperature of 30degrees C for D. echinovolvata ASI 32002 and Phallus rugulosus . The optimal medium for Dictyophora spp. was PBA (potato bamboo sawdust extract agar) medium. The strain ASI 32002, D. echinovolvata , grew faster than. D. indusiata ASI 32003 and Phallus rugulosus ASI 25007 on the medium. Carbon sources such as glucose, maltose and inuline were favorable for stimulating a mycelial growth of the two strains of ASI 32002 and ASI 32003. Asparagine and glutamine appeared to be favorable to the strain ASI 32002 and ASI 32003, where as alanine, one of nitrogen source also favorable to the strain ASI 32002. The optimum C/N ratio of the two isolates of ASI 32002 and ASI 32003 was about 25 : 1 when 2% glucose as carbon source was mixed with the basal medium. While, in the case of 4% as carbon source, the optimum C/N ratio was about 30 : 1.
Agaricales*
;
Alanine
;
Asparagine
;
Carbon
;
Cultural Characteristics*
;
Glucose
;
Glutamine
;
Hydrogen-Ion Concentration
;
Inulin
;
Maltose
;
Nitrogen
4.Measurement of Renal Cortical Thickness Using Spiral CT in Early Diabetic Nephropathy.
Bong Sig KOO ; Won Jung CHUNG ; Byeong Ho PARK ; Jong Cheol CHOI ; Kyung Jin NAM ; Yung Il LEE ; Duk Hwan CHUNG
Journal of the Korean Radiological Society 1997;36(3):499-502
PURPOSE: To compare the ratio of renal cortical thickness to renal parenchymal thickness in early diabetic nephropathy and in normal control group. MATERIALS AND METHODS: We performed spiral CT in 17 patients suffering from diabetic nephropathy without renal failure or renal atrophy. The normal control group consisted of 19 persons who were normal on renal function test and did not show any abnormality of the kidney. Renal cortical and parenchymal thicknesses were measured at renal hilum level perpendicular to the renal surface by electronic caliper on contrast-enhanced transverse scan demonstrating the cortical nephrogram phase. Using student's test, the difference in renal parenchymal and cortical thickness between the two groups was tested for statistical significance. RESULTS: There was no significant difference in renal parenchymal thickness between the two groups(P>0.05) ; the patient group had a thicker renal cortex than the normal control group however (P<0.05). The ratio of renal cortical thickness to parenchymal thickness in early diabetic nephropathy patients(Rt.:0.041+/-0.051, Lt.:0.382+/-0.053) was significantly higher than in the normal control group (Rt.:0.331+/-0.067, Lt.:0.323+/-0.064). CONCLUSION: The kidney of early diabetic nephropathy patients had a thicker renal cortex than normal kidney.
Atrophy
;
Diabetic Nephropathies*
;
Humans
;
Kidney
;
Renal Insufficiency
;
Tomography, Spiral Computed*
5.Measurement of Renal Cortical Thickness Using Spiral CT in Early Diabetic Nephropathy.
Bong Sig KOO ; Won Jung CHUNG ; Byeong Ho PARK ; Jong Cheol CHOI ; Kyung Jin NAM ; Yung Il LEE ; Duk Hwan CHUNG
Journal of the Korean Radiological Society 1997;36(3):499-502
PURPOSE: To compare the ratio of renal cortical thickness to renal parenchymal thickness in early diabetic nephropathy and in normal control group. MATERIALS AND METHODS: We performed spiral CT in 17 patients suffering from diabetic nephropathy without renal failure or renal atrophy. The normal control group consisted of 19 persons who were normal on renal function test and did not show any abnormality of the kidney. Renal cortical and parenchymal thicknesses were measured at renal hilum level perpendicular to the renal surface by electronic caliper on contrast-enhanced transverse scan demonstrating the cortical nephrogram phase. Using student's test, the difference in renal parenchymal and cortical thickness between the two groups was tested for statistical significance. RESULTS: There was no significant difference in renal parenchymal thickness between the two groups(P>0.05) ; the patient group had a thicker renal cortex than the normal control group however (P<0.05). The ratio of renal cortical thickness to parenchymal thickness in early diabetic nephropathy patients(Rt.:0.041+/-0.051, Lt.:0.382+/-0.053) was significantly higher than in the normal control group (Rt.:0.331+/-0.067, Lt.:0.323+/-0.064). CONCLUSION: The kidney of early diabetic nephropathy patients had a thicker renal cortex than normal kidney.
Atrophy
;
Diabetic Nephropathies*
;
Humans
;
Kidney
;
Renal Insufficiency
;
Tomography, Spiral Computed*
6.A Case of Central Diabetes Insipidus Developed during Puerperium.
Soon Jib YOO ; Kwang Woo LEE ; Ho Young SON ; Sung Koo KANG ; Myung Hee CHUNG ; Bum Soon CHOI ; Bong Yeon CHA
Journal of Korean Society of Endocrinology 1997;12(2):315-320
Diabetic insipidus may first present before, during or immediately after pregnancy. Pregnancy serves as a physiologic provocation test that unmasks latent diabetes insipidus. It may explain the very rare first occurrence of diabetes insipidus in the pureperium. Central diabetes insipidus occurring after delivery associated with a catastrophic delivery and postpartum hypopituitarism is more frequent entity. We recently experienced central diabetes insipidus patient, aggrevated polyuria and polydipsia after total hysterectomy due to cervical carcinoma, who had interesting past history of severe polyuria and polydipsia developed during puerperium of 1st pregnancy, 14 years ago. She have had quiet normal pregnancy and there was no definite postpartum complication of pregnancy at that time. There were no change of polyuria and polydipsia during and after second pregnancy and 2 another pregnancy terminated artificially compare to puerperium of 1st delivery. She has intact anterior pituitary gland functinally and anatomically, but the posterior pituitary hyperintense signal with pre-enhance Tl-weighted imaging was absent on MRI.
Diabetes Insipidus
;
Diabetes Insipidus, Neurogenic*
;
Humans
;
Hypopituitarism
;
Hysterectomy
;
Magnetic Resonance Imaging
;
Pituitary Gland, Anterior
;
Polydipsia
;
Polyuria
;
Postpartum Period*
;
Pregnancy
7.A Tethered Spinal Cord with Intraspinal Lipoma in a 40-year-old Woman who has Intractable Pain of the Foot: Case Report.
Kang June YOON ; Kyu Ho LEE ; Bong Sub CHUNG ; Sae Moon OH ; Seong Koo KANG
Journal of Korean Neurosurgical Society 1987;16(4):1287-1292
A 40-year-old female patient who had tethered spinal cord with intraspinal lipoma and intractable pain of the lower leg and foot is reported. The pain started 5 years ago and exaggerated recently. A pea-size mass had been noted since birth at sacral region, which was excised 2 months prior to admission at the other clinic. Neurological examination revealed diffuse muscular wasting of the left foot, especially the sole, hypesthesia of the left sole with dysesthesia, bilaterally increased knee jerks, and absent left ankle jerk. The patient underwent L5 laminectomy, subtotal removal of extradural, intradural and intramedually lipoma with dural repair, and dorsal rhizotomy of ipsilateral L5 and S1 roots. At surgery, the neural elements were untethered with mass removal, adhesiolysis, and division of thickened arachnoid septum. The pain improved much after and was tolerable with some analgesics.
Adult*
;
Analgesics
;
Ankle
;
Arachnoid
;
Female
;
Foot*
;
Humans
;
Hypesthesia
;
Knee
;
Laminectomy
;
Leg
;
Lipoma*
;
Neurologic Examination
;
Pain, Intractable*
;
Paresthesia
;
Parturition
;
Rhizotomy
;
Sacrococcygeal Region
;
Spinal Cord*
8.Role of Double-Phase Spiral CT for T Staging of Gastric Cancer: Radiologic-Pathologic Correlation.
Jin Hwa LEE ; Jong Cheol CHOI ; Kyung Jin NAM ; Jou Yeoun KIM ; Yi Tae KIM ; Bong Sig KOO ; Duck Hwan CHUNG
Journal of the Korean Radiological Society 1996;35(4):523-529
URPOSE: To evalvate the role of double-phase spiral CT for T staging of gastric cancers with radiologic-pathologic correlation. MATERIALS AND METHODS: Double-phase spiral CT images of 44 patients of gastriccancers proved by pathologic examination were retrospectively evaluated. We retrospectively classified spiral CTimages of gastric cancers ; classification was from S 0 to S 4 and was based on the degree of change in three multilayered patterns shown in normal gastric wall and whether or not tumor cells had invaded perigastric fattissue. Pathologic classification was based on the T staging of TNM classification for gastric cancers, and wethen correlated these results. RESULTS: In group S1, all of three cases(100%) were proved to be T1 and in groupS2, five(45.5%) of 11 cases were T2. Of five cases with S3 CT findings, three(60%) were proved to be T3s andtwo(40%) were T2. Of 22 cases with S4 CT findings, 19(86.4%) were T3p. Overall sensitivity, specificity, and accuracy were 60.3%, 88. 5%, and 86.9%, respectively. In 35 (79.5%) of the total of 44 cases, the lesions were more enhanced on venous than on arterial phase. CONCLUSION: The accuracy of double-phase spiral CT for T staging of gastric cancers was 86.9%, and in contrast to previous results for conventional or dynamic CT, this level of accuracy was thought to be relatively high. In conclusion, double-phase spiral CT images of gastric cancers were helpful in the diagnosis of T staging.
Classification
;
Diagnosis
;
Humans
;
Retrospective Studies
;
Sensitivity and Specificity
;
Stomach Neoplasms*
;
Tomography, Spiral Computed*
9.Stress Fracture in Posterior Aspect of the Tibia.
Tae Yong MOON ; Kyung Ah CHUN ; Bong Sig KOO ; Sang Yong LEE ; Hyun Woo JUNG ; Chung Hun PARK
Journal of the Korean Radiological Society 1999;40(1):147-154
PURPOSE: To determine correlation between stress fracture of the posterior tibia and flexor digitorum longusmuscle injury caused by athletic or sporting activity during adolescence. MATERIALS AND METHODS: Eleven casesdiagnosed as stress fracture after X-ray and MR imaging of the lower leg were reviewed. With regard to eachfracture, the following features were noted: age, sex, and athletic or sporting activity of the patient, and site.Using MR imaging techniques, axial and sagittal T1 and T2 weighted images were obtained in all cases and T1-GdDTPA images in seven. RESULTS: The activities undertaken were running (n=3), football (n=2), ballet (n=2),taekwando (n=1), badminton (n=1), field hockey (n=1), and basketball (n=1). MR images revealed localized corticalthickness (n=11), linear intramedullary callus showing a low signal on T1 and T2 weighted images (n=9), marrowhyperemia (n=7), and flexor digitorum longus muscle injury showing a high signal on T1-Gd DTPA and T2 weightedimage (n=7). CONCLUSION: Stress fracture of the posterior tibia might be induced by flexor digitorum longusmuscle activity induced by athletic or sporting activities during adoleseence.
Adolescent
;
Basketball
;
Bony Callus
;
Football
;
Fractures, Stress*
;
Hockey
;
Humans
;
Leg
;
Magnetic Resonance Imaging
;
Pentetic Acid
;
Racquet Sports
;
Running
;
Sports
;
Tibia*
10.Dynamic Three-Dimensional Analysis of Lachman Test for Anterior Cruciate Ligament Insufficiency: Analysis of Anteroposterior Motion of the Medial and Lateral Femoral Epicondyles
Seungbum KOO ; Bong Soo KYUNG ; Ju Seon JEONG ; Dong Won SUH ; Jin Hwan AHN ; Joon Ho WANG
The Journal of Korean Knee Society 2015;27(3):187-193
PURPOSE: To evaluate dynamic three-dimensional (3D) kinematic properties of the anterior cruciate ligament (ACL)-insufficient knees and healthy contralateral knees in awake patients during the Lachman test using biplane fluoroscopy. MATERIALS AND METHODS: Ten patients with unilateral ACL-insufficient knees and healthy contralateral knees were enrolled in this study. Each patient underwent the Lachman test three times in the awake state. The knee joint motions were captured using biplane fluoroscopy. After manual registration of 3D surface data from 3D-computed tomography to biplane images, dynamic 3D kinematic data were analyzed. RESULTS: The average anteroposterior (AP) translation of the medial femoral epicondyle of the ACL-insufficient knees (11.5+/-4.2 mm) was significantly greater than that of the contralateral knees (7.7+/-3.5 mm) (p<0.05). However, there was no statistically significant side-to-side difference in the average AP translation of the lateral femoral epicondyle. During the Lachman test, the distal femur was more externally rotated than the proximal tibia, which showed significant difference between both sides. CONCLUSIONS: During the Lachman test, the medial femoral epicondyle of the ACL-insufficient knee exhibited greater AP motion than that of the contralateral knee, whereas there was no significant side-to-side difference with regard to the AP motion of the lateral femoral epicondyle.
Anterior Cruciate Ligament
;
Femur
;
Fluoroscopy
;
Humans
;
Knee
;
Knee Joint
;
Tibia