1.Dysembryoplastic Neuroepithelial Tumors in Children with Intractable Seizures: Report of Two Cases.
Mun Hyang LEE ; Seung Chyul HONG ; Yeon Lim SUH ; Hye Kyung YOON ; Bo Kyung KIM
Journal of the Korean Child Neurology Society 1998;5(2):334-341
We report 2 cases of pediatric DNTs which presented with intractable seizures and no other associated neurologic abnormalities. They showed typical appearance of DNTs on neuroimaging and histopathology. Most patients with DNT can be cured by surgical treatment with exellent outcome and do not need ratio- or chemotheraphy. This study indicates that it is quite important to consider DNTs as one of differential diagnoses in patients with intractable seizures especially when they present only with seizures without other neurologic symptoms.
Child*
;
Diagnosis, Differential
;
Humans
;
Neoplasms, Neuroepithelial*
;
Neuroimaging
;
Neurologic Manifestations
;
Seizures*
2.Effect of Amino Acids and Albumin on Damage Induced by Cyanate in Osteoblast.
Kyung Dae PARK ; Sung Bae PARK ; Hye Jung CHOI ; Kyo Cheol MUN ; Hyun Chul KIM
Korean Journal of Nephrology 2007;26(4):404-413
PURPOSE: Cyanate, known as one of the uremic toxins and derived spontaneously from urea, has several effects on the biologic substances including erythropoietin, antioxidant and ceruloplasmin. To find out the protective materials from the hazardous effect of cyanate in osteoblast, we added twenty amino acids, albumin globulin and hemoglobin in the culture media containing osteoblastic cells with cyanate. METHODS: Osteoblastic ROS 17/2.8 cells, exposed to various concentrations of sodium cyanate, were used to analyze for the cytotoxicity. The cyanate-induced cytotoxicity was assessed by the methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay by measuring the absorbance of the reaction solution at 570 nm. Viability of the treated cells was expressed as A570 of sample/A570 of control. The degree of the carbamylation was measured using trinitrobenzenesulphonic acid. The degree of the carbamylation in amino acid was about 50% in average. RESULTS: The degree of the carbamylation in albumin was increased depending on the incubation time with cyanate and the concentration of the cyanate. The degree of the carbamylation in globulin and hemoglobin was nearly zero. Asp, Glu, Leu, Trp and Tyr among the twenty amino acids revealed the protective effect against the damage induced by cyanate. And only albumin among the three proteins revealed the protective effect. CONCLUSION: On the basis of these results, Asp, Glu, Leu, Trp, Tyr and albumin are useful tools for the protection against damages by cyanate carbamylation.
Albumins
;
Amino Acids*
;
Ceruloplasmin
;
Culture Media
;
Cyanates
;
Erythropoietin
;
Osteoblasts*
;
Sodium
;
Urea
;
Viperidae
3.Energy expenditure of physical activity in Korean adults and assessment of accelerometer accuracy by gender.
Yeon jung CHOI ; Mun jeong JU ; Jung hye PARK ; Jong hoon PARK ; Eun kyung KIM
Journal of Nutrition and Health 2017;50(6):552-564
PURPOSE: The purpose of this study was to measure energy expenditure (EE) the metabolic equivalents (METs) of 13 common physical activities by using a portable telemetry gas exchange system (K4b2) and to assess the accuracy of the accelerometer (Actigraph GT3X+) by gender in Korean adults. METHODS: A total of 109 adults (54 males, 55 females) with normal BMI (body mass index) participated in this study. EE and METs of 13 selected activities were simultaneously measured by the K4b2 portable indirect calorimeter and predicted by the GT3X+ Actigraph accelerometer. The accuracy of the accelerometer was assessed by comparing the predicted with the measured EE and METs. RESULTS: EE (kcal/kg/hr) and METs of treadmill walking (3.2 km/h, 4.8 km/h and 5.6 km/h) and running (6.4 km/h) were significantly higher in female than in male participants (p < 0.05). On the other hand, the accelerometer significantly underestimated the EE and METs for all activities except descending stairs, moderate walking, and fast walking in males as well as descending stairs in females. Low intensity activities had the highest rate of accurate classifications (88.3% in males and 91.3% females), whereas vigorous intensity activities had the lowest rate of accurate classifications (43.6% in males and 27.7% in females). Across all activities, the rate of accurate classification was significantly higher in males than in females (75.2% and 58.3% respectively, p < 0.01). Error between the accelerometer and K4b2 was smaller in males than in females, and EE and METs were more accurately estimated during treadmill activities than other activities in both males and females. CONCLUSION: The accelerometer underestimated EE and METs across various activities in Korean adults. In addition, there appears to be a gender difference in the rate of accurate accelerometer classification of activities according to intensity. Our results indicate the need to develop new accelerometer equations for this population, and gender differences should be considered.
Adult*
;
Calorimetry, Indirect
;
Classification
;
Energy Metabolism*
;
Female
;
Hand
;
Humans
;
Male
;
Metabolic Equivalent
;
Motor Activity*
;
Running
;
Telemetry
;
Walking
4.Confirmation of Two Undescribed Fungal Species from Dokdo of Korea Based on Current Classification System Using Multi Loci.
Hye Won LEE ; Thi Thuong Thuong NGUYEN ; Hye Yeon MUN ; Haengsub LEE ; Changmu KIM ; Hyang Burm LEE
Mycobiology 2015;43(4):392-401
Using dilution plating method, 47 fungal isolates were obtained from a soil sample collected from Dokdo in the East Sea of Korea in 2013. In this study, two fungal isolates, EML-MFS30-1 and EML-DDSF4, were confirmed as undescribed species, Metarhizium guizhouense and Mortierella oligospora in Korea based on current classification system using multi loci including rDNA internal transcribed spacer, large subunit, small subunit, and beta-tubulin (BTUB) genes. Herein, detailed morphological descriptions on characters of the undescribed fungal species as well as their molecular phylogenetic status are provided with comparisons to related species.
Classification*
;
DNA, Ribosomal
;
Korea*
;
Metarhizium
;
Mortierella
;
Soil
;
Tubulin
5.A New Record of Penicillium raphiae Isolated from Agricultural Soil of Ulleung Island, Korea.
Narayan Chandra PAUL ; Hye Yeon MUN ; Hye Won LEE ; Seung Hun YU ; Hyang Burm LEE
Mycobiology 2014;42(3):282-285
A fungal isolate EML-NCP01 was recovered from agricultural soil in Ulleung Island, Korea. Phylogenetic analysis of internal transcribed spacer and beta-tubulin genes identified the isolate as the Penicillium species P. raphiae. Morphologically, the EML-NCP01 isolate was identical to the previous description of P. raphiae. The species presented here has not been reported in Korea.
Korea
;
Penicillium*
;
Soil*
;
Tubulin
7.Neoadjuvant chemotherapy in cervical carcinoma during pregnancy: Case report.
Se Hee MUN ; Hee Sug RYU ; Hye Jin CHANG ; Ho Yeon KIM ; Ki Hong CHANG ; Jung Pil LEE
Korean Journal of Gynecologic Oncology 2005;16(3):268-272
When the cervical cancer is diagnosed in early stage during pregnancy, the treatment can be postponed for fetal viability. This case presents a patient diagnosed as cervical cancer stage Ib1 during her pregnancy. The patient had 2 cycles of neoadjuvant chemotherapy (Paclitaxel-cisplatin) formerly and cesarean section was done at 33rd weeks of intrauterine pregnancy, then radical abdominal hysterectomy with bilateral pelvic lymph node dissection and paraaortic lymph node biopsy was immediately performed right after the delivery. For the baby born, there was neither complication nor congenital anomaly but mild bilateral ventriculomegaly seen on brain CT taken on 3 days after birth. This case offers a better chance for both mother and fetus while conserving fetal viability and managing the early cervical cancer during pregnancy through close follow up.
Biopsy
;
Brain
;
Cesarean Section
;
Drug Therapy*
;
Female
;
Fetal Viability
;
Fetus
;
Follow-Up Studies
;
Humans
;
Hysterectomy
;
Lymph Node Excision
;
Lymph Nodes
;
Mothers
;
Parturition
;
Pregnancy*
;
Uterine Cervical Neoplasms
8.Extra-Articular Synovial Chondromatosis: A case Report.
Seung Cheol KIM ; Yeon Hee LEE ; Young Hi CHOI ; Tae Hoon KIM ; Sang Joon KIM ; Myung Ho KIM ; Jin Young PARK ; Na Hye MYONG ; Pil Mun YU
Journal of the Korean Radiological Society 1996;34(5):663-666
A 60-year-old female presented with a slowly growing, painful mass in the superolateral portion of the rightt high. Physical examination, roentgenography, bone scan and magnetic resonance imaging revealed a soft tissue masswith mineralization which did not involve bone or joint. A triangular-shaped, mineralized lesion was found in the superior side of the greater trochanter on simple radiograph and on magnetic resonance imaging. It had not been detected clinically, and was asymptomatic. The masses were removed en bloc and diagnosed as extra articular osteochondroma. Eight months postoperatively, pain had almost been relieved.
Chondromatosis, Synovial*
;
Female
;
Femur
;
Humans
;
Joints
;
Magnetic Resonance Imaging
;
Middle Aged
;
Osteochondroma
;
Physical Examination
;
Radiography
9.A Comparative Study on Transcatheter Renal Arterial Embolization (TRAE) in Rabbits with Absolute Ethanol and Gelfoam Particles.
Tae Hoon KIM ; Pil Mun YU ; Young Hee CHOI ; Sang Joon KIM ; Yeon Hee LEE ; Seung Cheol KIM ; Pil Won SUH ; Na Hye MYUNG ; Sung Chul YOON
Journal of the Korean Radiological Society 1996;34(4):473-480
PURPOSE: To evaluate the therapeutic effectiveness of absolute ethanol and gelfoam particles and the degree of vascular recanalization after gelfoam embolization. MATERIALS AND METHODS: Transcatheter renal arterial embolization(TRAE) was performal in 16 rabbits ; Eight were embolized with absolute ethanol, and eight with gelfoam particles. Of this total, three died less than one week after embolization. Pre- and post embolization angiographies at five minutes, one week, two weeks(gelfoam group only) and 5-6 weeks after embolization were performed. Six rabbits were sacrificed at one week, and seven at 5-6 weeks after embolization. Pathologic examination was performed. RESULTS: The ethanol group(n=6) showed complete occlusion of the main renal artery on follow-up angiography at one week and 5-6 weeks after embolization. The pathologic finding was complete total necrosis of embolized kidneys. The gelfoam group(n=7) showed partial recanalization of renal arteries in follow upangiography at one week, two weeks and 5-6 weeks after embolization. The pathologic finding was partial lysis ofgelfoam particles within intrarenal arteries. CONCLUSION: Absolute ethanol can be used as a permanent embolicagent and gelfoam as a temporary such agent in various clinical applications. Gelfoam, however, did not show complete recanalization on angiography and pathology at six weeks after embolization.
Angiography
;
Arteries
;
Ethanol*
;
Gelatin Sponge, Absorbable
;
Kidney
;
Pathology
;
Rabbits*
;
Renal Artery
10.A study of the use of home mechanical ventilator and medical insurance.
Sang Wook MUN ; Hyung Young KIM ; Hye Young KIM ; Hee Ju PARK ; Soo Yeon KIM ; Young Beom SHIN ; Seung Kook SON
Allergy, Asthma & Respiratory Disease 2016;4(3):195-198
PURPOSE: Use of a home mechanical ventilator can shorten the hospitalization duration of children with chronic respiratory failure requiring long-term use of a mechanical ventilator. In this study, the researchers analyzed patients who had used a home mechanical ventilator. METHODS: From January 2009 to July 2014, we retrospectively investigated 15 patients under 18 years of age, from 2 hospitals, and their use of home mechanical ventilators. RESULTS: The median age of the patients was 55 months. Ten children were male, and 5 were female. As for the type of mechanical ventilators, 10 used a pressure type, 3 used a volume type, and 2 used a volume-mask type. Analysis of underlying diseases revealed that 10 children had neuromuscular disease, 3 had pulmonary disease, and 2 suffered from hypoxic ischemic encephalopathy. The number of patients who were discharged from the hospital with a home mechanical ventilator was 13. One child died of sepsis irrespective of the mechanical ventilator. Six patients had health insurance. But 9 did not. The group with insurance had the possibility of being discharged earlier than the group without. On readmission, the length of hospitalization was also reduced in patients who had used a home mechanical ventilator. CONCLUSION: Use of a mechanical ventilator at home is helpful in patients who need long-term use of a mechanical ventilator due to neuromuscular disease, chronic pulmonary diseases, and accidents because complications are rare and insurance coverage is feasible.
Child
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Female
;
Hospitalization
;
Humans
;
Hypoxia-Ischemia, Brain
;
Insurance Coverage
;
Insurance*
;
Insurance, Health
;
Lung Diseases
;
Male
;
Neuromuscular Diseases
;
Respiratory Insufficiency
;
Retrospective Studies
;
Sepsis
;
Ventilators, Mechanical*