1.Correlation of egg counts of Clonorchis sinensis by three methods of fecal examination.
Min Ho CHOI ; Tao GE ; Shang YUAN ; Sung Tae HONG
The Korean Journal of Parasitology 2005;43(3):115-117
The Kato-Katz (KK) method is a well-known method of fecal examination for helminthiases. Its diagnostic sensitivity was found very high for clonorchiasis. The present study evaluated the correlation of Clonorchis sinensis egg counts by the KK method with those by direct smear and formalin-ether (FE) technique. The egg counts obtained by the KK method (Y) were correlated with the counts by direct smear (X) with the equation of Y = 659.4 + 0.266X (r2= 0.738), but not with those by the FE method. The present study demonstrated that the KK method and direct smear were useful for both qualitative and quantitative diagnosis of clonorchiasis, especially in the field.
Animals
;
Cellophane
;
Clonorchiasis/*diagnosis/parasitology
;
Clonorchis sinensis/*isolation & purification
;
Comparative Study
;
Ether, Ethyl
;
Feces/parasitology
;
Formaldehyde
;
Humans
;
Parasite Egg Count/*methods
;
Sensitivity and Specificity
2.Depression of highschool senior students in Seoul.
Min Chang LEE ; Mi Kyung OH ; Jong Tae CHOI
Journal of the Korean Academy of Family Medicine 1992;13(12):927-934
No abstract available.
Depression*
;
Humans
;
Seoul*
3.Estimation of Young's Modulus and Apparent Density of Human Trabecular Bone by Spherical Indentatin Test and CT.
Tae Soo BAE ; Tae Soo LEE ; Seung Baik KANG ; Young Min KIM ; Kui Won CHOI
Journal of Korean Orthopaedic Research Society 1999;2(2):155-163
We intended to evaluate the Young's modulus of trabecular bone and apparent density from Computed Tomography(CT) and Spherical Indentation test and to quantify relation ship between them. The distal femurs(31 age, male, left and right) were prepared for exprimentatin and were embedded with repect to anatomical orientation. Then the specimens were scnned at 1 mm intervals on GE9800 CT scanner and the Hounsfield Units(HU, or CT number) were extracted from each CT image. After scanning, the bones were sectioned with diamond saw, producing 8 mm cubes of trabecular bone(72 eachs) from the metaphyseal region of both distal femur. The cubes were mechanically tested in inferior-superior(IS), anteriorposterior(AP), and medial-lateral(ML) direction with custom-made device, Spherical Indentatin Tester. After testing, the real apparent density of specimens were measured. The results of this study showed that the IS modulus was singificantly greater than both the AP and ML modulus and the AP modulus was also greater than ML modulus significantly(p<0.01). A linear relation ship between HU and real apparent density was found to be significant(R2=0.68) and significant power relationship between the apparent density and the tangent moduli(either by CT or physical measures) was also found.
Diamond
;
Elastic Modulus*
;
Femur
;
Humans*
;
Male
;
Ships
4.A Stable Secondary Gliosarcoma with Extensive Systemic Metastases: A Case Report.
Tae Min CHOI ; Young Jun CHEON ; Tae Young JUNG ; Kyung Hwa LEE
Brain Tumor Research and Treatment 2016;4(2):133-137
A 63-year-old man complained of intermittent motor weakness of his arm. The magnetic resonance image (MRI) of his brain displayed a high signal lesion in right cingulate gyrus on T2 weighted image. One year later, he showed a stuporous mental status with repeated seizures, and the follow-up brain MRI showed heterogeneously enhanced mass associated with bleeding. He was treated with surgery and radiotherapy for secondary glioblastomas in right cingulate gyrus. One year more later, a mass recurred on the left frontal base, and gliosarcoma was diagnosed. After tumor resection, ventriculoperitoneal shunt, chemotherapy, and re-radiation therapy, all brain lesions were stable. Fourteen months after the diagnosis of gliosarcoma, he complained of dyspnea and back pain. Torso positron emission tomography/computed tomography revealed multiple metastatic lesions in both lungs, pericardium, pleura, liver, lymph nodes, and bones, and metastatic gliosarcoma was diagnosed. One month later, the patient died because of the systemic metastases. We present an unusual case of secondary gliosarcoma with stable brain lesions and extensive systemic metastases.
Arm
;
Back Pain
;
Brain
;
Brain Neoplasms
;
Diagnosis
;
Drug Therapy
;
Dyspnea
;
Electrons
;
Follow-Up Studies
;
Glioblastoma
;
Gliosarcoma*
;
Gyrus Cinguli
;
Hemorrhage
;
Humans
;
Liver
;
Lung
;
Lymph Nodes
;
Magnetic Resonance Imaging
;
Middle Aged
;
Neoplasm Metastasis*
;
Pericardium
;
Pleura
;
Radiotherapy
;
Seizures
;
Stupor
;
Torso
;
Ventriculoperitoneal Shunt
6.Retroperitoneal Laparoscopic Lumbar Sympathectomy.
Tae Won KWON ; Geun Eun KIM ; Youn Baik CHOI ; Pyung Chul MIN
Journal of the Korean Surgical Society 1998;54(1):124-128
Seven cases of retroperitoneal laparoscopic lumbar sympathectomy were successfully performed in 10 patients with ischemic lesions of lower limbs or ischemic rest pain between June, 1996 and October, 1996. All patients had nonreconstructable distal vessels on femoral angiogram. Our techniques of retroperitoneal laparoscopic lumbar sympathectomy is described in detail. Procedure offers the advantage of minimally invasive surgery and can be performed more efficiently as the experience of the surgeon accumulates.
Humans
;
Lower Extremity
;
Surgical Procedures, Minimally Invasive
;
Sympathectomy*
7.In vitro culture of Cryptosporidium muris in a human stomach adenocarcinoma cell line.
Min Ho CHOI ; Sung Tae HONG ; Jong Yil CHAI ; Woo Yoon PARK ; Jae Ran YU
The Korean Journal of Parasitology 2004;42(1):27-34
We investigated the optimal culture conditions for Cryptosporidium muris in a human stomach adenocarcinoma (AGS) cell line by determining the effects of medium pH and of selected supplements on the development of C. muris. The optimum pH of the culture medium required for the development of C. muris was determined to be 6.6. The number of parasites significantly increased during cultivation for 72 hr (p < 0.05) at this level. On the other hand, numbers decreased linearly after 24 hr of incubation at pH 7.5. When cultured in different concentrations of serum, C. muris in media containing 5% FBS induced 4-7 times more parasites than in 1% or 10% serum. Of the six medium supplements examined, only 1 mM pyruvate enhanced the number of C. muris in vitro. Transmission electron microscopic observation showed the developmental stages of C. muris in the cytoplasm of the cells, not in an extracytoplasmic location. The growth of C. muris in AGS cells provides a means of investigating its biological characteristics and of testing its response to therapeutic agents. However, a more optimized culture system is needed for the recovery of oocysts on a large scale in vitro.
Adenocarcinoma
;
Animals
;
Cell Line, Tumor
;
Cryptosporidium/*growth & development
;
Culture Media
;
Human
;
Hydrogen-Ion Concentration
;
Stomach/*parasitology
;
Stomach Neoplasms
;
Support, Non-U.S. Gov't
8.Therapeutic Outcome and Prognosis in Dlderly Patients with Non - Hodgkin's Lymphoma.
Jee Sook HAHN ; Jin Hyuk CHOI ; Seung Tae LEE ; Yoo Hong MIN ; Yun Woong KO
Journal of the Korean Cancer Association 1999;31(2):320-330
PURPOSE: The prognosis of non-Hodgkins lymphoma (NHL) in elderly patients seems to be poorer than that in patients aged less than 60 years. This may be due to the lower tolerance for combination chemotherapy in the elderly. Aggressive combination chemo-therapy, which is the treatment of choice in intermediate and high grade NHL of adulthood, may be associated with unpredictab1y severe and lethal toxicity and worsened quality of life in the elderly. We investigated the treatment responses, toxicities and prognostic factors of NHL in elderly patients treated with combination chemotherapy. MATERIALS AND METHODS: We treated 116 elderly (>60 yrs) patients with NHL between January 1986 and June 1996 with adriamycin-containing regimens, such as CHOP (cyclo- phosphamide, adriamycin, vincristine, prednisolone), BACOP (bleomycin, adriamycin, cyclophosphamide, vincristine, prednisolone), and mBACOP (methotrexate, bleomycin, adriamycin, cyclophosphamide, vincristine, prednisolone). Patients in this study ranged from 60 to 81 (median 67) years of age. Fifty-five percent of patients were in stage I or II and the rest (45%) were in stage III or IV. The histologic grade was predominantly (91%) of intermediate and high grade type. RESULTS: The treatment responses were complete (CR) in 55% and partial (PR) in 25%. The median durstion of CR was 32 (3-132) months. The CR rate was significantly higher in patients treated with RDI (relative dose intensity) > 75% than that in the patients treated with RDI < 75% (p 0.003), but there was no significant difference in CR rate between treatment regimens (p-0.38). At a median follow up of 48-months (range, 12 to 132 months), the estimated 5-year ovetall survival was 46%. Ann Arbor Stage (I, II vs III, IV), ECOG performance (0-1 vs 2-3), RDI (>75% vs <75%) and the treatment response were important prognostic factors in the univariate analysis, and the treament response (CR vs non-CR) was the only independent prognostic parameter in the multivariate analysis. The most frequent and severe toxicity associated with chemotherapy was infection with or without neutropenia. The rate of severe infection was significantly decreased in the patients supported with G/GM-CSF but not in the dose-reduction group (RDI<75% vs >75%). CONCLUSION: Our data suggests that achievement of the CR after combination chemotherpy is the most important prognostic factor in the elderly patients with NHL. Suboptimal chemotherapy (RDI<75%) reduced the complete remission rate without reducing the likelihood of developing severe toxicities. Optimal chemotherapy with supportive cares involving the use of hematopoietic growth factors may be needed to improve the treatment response and the survival in the elderly patients with aggressive NHL.
Aged
;
Bleomycin
;
Cyclophosphamide
;
Dimethoate
;
Doxorubicin
;
Drug Therapy
;
Drug Therapy, Combination
;
Follow-Up Studies
;
Hodgkin Disease*
;
Humans
;
Intercellular Signaling Peptides and Proteins
;
Lymphoma, Non-Hodgkin
;
Multivariate Analysis
;
Neutropenia
;
Prognosis*
;
Quality of Life
;
Vincristine
9.Three Cases of Neonatal Group B Streptococcal Meningitis.
Jae Kwang HONG ; Hyun Mo CHEONG ; Jung Sik MIN ; June Tae PARK ; Chang Hee CHOI
Journal of the Korean Pediatric Society 1987;30(7):777-783
No abstract available.
Meningitis*
10.A Case of Widespread Scleredema Treated with Cyclosporine and Steroid.
Hye Won KIM ; Min Wha CHOI ; Sook Ja SON ; June Hyunkyung LEE ; Tae Young HAN
Korean Journal of Dermatology 2017;55(8):537-538
No abstract available.
Cyclosporine*
;
Scleredema Adultorum*